./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/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_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46bbe683d8965e9a855fbd780578b958a816bbdd25bc1fa0d6151e1b826f8669 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:39:07,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:39:07,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:39:07,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:39:07,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:39:07,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:39:07,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:39:07,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:39:07,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:39:07,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:39:07,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:39:07,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:39:07,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:39:07,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:39:07,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:39:07,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:39:07,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:39:07,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:39:07,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:39:07,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:39:07,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:39:07,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:39:07,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:39:07,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:39:07,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:39:07,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:39:07,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:39:07,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:39:07,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:39:07,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:39:07,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:39:07,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:39:07,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:39:07,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:39:07,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:39:07,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:39:07,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:39:07,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:39:07,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:39:07,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:39:07,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:39:07,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 02:39:07,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:39:07,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:39:07,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:39:07,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:39:07,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:39:07,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:39:07,553 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:39:07,553 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:39:07,553 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:39:07,554 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:39:07,554 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:39:07,554 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:39:07,554 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:39:07,554 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:39:07,555 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:39:07,555 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:39:07,555 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:39:07,555 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:39:07,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:39:07,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:39:07,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:39:07,557 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:39:07,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 02:39:07,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:39:07,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:39:07,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:39:07,558 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 02:39:07,559 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 02:39:07,559 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 02:39:07,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:39:07,559 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:39:07,559 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:39:07,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:39:07,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:39:07,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:39:07,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:07,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:39:07,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:39:07,561 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:39:07,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:39:07,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:39:07,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:39:07,562 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_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46bbe683d8965e9a855fbd780578b958a816bbdd25bc1fa0d6151e1b826f8669 [2021-11-23 02:39:07,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:39:07,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:39:07,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:39:07,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:39:07,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:39:07,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2021-11-23 02:39:07,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/data/6ee8795ea/2fed04c6d90a46ee8cacc90400e0fd07/FLAG1a7fa5a0c [2021-11-23 02:39:08,494 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:39:08,495 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2021-11-23 02:39:08,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/data/6ee8795ea/2fed04c6d90a46ee8cacc90400e0fd07/FLAG1a7fa5a0c [2021-11-23 02:39:08,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/data/6ee8795ea/2fed04c6d90a46ee8cacc90400e0fd07 [2021-11-23 02:39:08,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:39:08,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:39:08,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:08,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:39:08,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:39:08,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ecec55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08, skipping insertion in model container [2021-11-23 02:39:08,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:39:08,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:39:09,213 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_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i[24361,24374] [2021-11-23 02:39:09,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:09,236 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:39:09,308 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_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i[24361,24374] [2021-11-23 02:39:09,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:09,354 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:39:09,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09 WrapperNode [2021-11-23 02:39:09,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:09,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:09,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:39:09,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:39:09,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,438 INFO L137 Inliner]: procedures = 127, calls = 38, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2021-11-23 02:39:09,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:09,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:39:09,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:39:09,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:39:09,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:39:09,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:39:09,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:39:09,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:39:09,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (1/1) ... [2021-11-23 02:39:09,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:09,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:09,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:39:09,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:39:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 02:39:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 02:39:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:39:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:39:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:39:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:39:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:39:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:39:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:39:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:39:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:39:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:39:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:39:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:39:09,766 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:39:09,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:39:09,836 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-23 02:39:10,116 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:39:10,201 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:39:10,201 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 02:39:10,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:10 BoogieIcfgContainer [2021-11-23 02:39:10,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:39:10,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:39:10,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:39:10,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:39:10,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:08" (1/3) ... [2021-11-23 02:39:10,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bb53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:10, skipping insertion in model container [2021-11-23 02:39:10,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:09" (2/3) ... [2021-11-23 02:39:10,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bb53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:10, skipping insertion in model container [2021-11-23 02:39:10,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:10" (3/3) ... [2021-11-23 02:39:10,221 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_equal.i [2021-11-23 02:39:10,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:39:10,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2021-11-23 02:39:10,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:39:10,284 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 02:39:10,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-11-23 02:39:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 36 states have (on average 2.388888888888889) internal successors, (86), 78 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:10,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 02:39:10,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:10,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 02:39:10,313 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:10,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:10,319 INFO L85 PathProgramCache]: Analyzing trace with hash 6153029, now seen corresponding path program 1 times [2021-11-23 02:39:10,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:10,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571713320] [2021-11-23 02:39:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:10,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:10,508 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 02:39:10,508 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:10,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571713320] [2021-11-23 02:39:10,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571713320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:10,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:10,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:10,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20810997] [2021-11-23 02:39:10,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:10,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:10,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:10,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:10,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:10,575 INFO L87 Difference]: Start difference. First operand has 80 states, 36 states have (on average 2.388888888888889) internal successors, (86), 78 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:10,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:10,821 INFO L93 Difference]: Finished difference Result 135 states and 148 transitions. [2021-11-23 02:39:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:10,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-23 02:39:10,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:10,832 INFO L225 Difference]: With dead ends: 135 [2021-11-23 02:39:10,832 INFO L226 Difference]: Without dead ends: 129 [2021-11-23 02:39:10,834 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 02:39:10,837 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 72 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:10,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 122 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:39:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-23 02:39:10,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 72. [2021-11-23 02:39:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 34 states have (on average 2.264705882352941) internal successors, (77), 71 states have internal predecessors, (77), 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 02:39:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2021-11-23 02:39:10,882 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 4 [2021-11-23 02:39:10,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:10,883 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2021-11-23 02:39:10,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2021-11-23 02:39:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 02:39:10,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:10,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 02:39:10,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:39:10,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:10,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:10,885 INFO L85 PathProgramCache]: Analyzing trace with hash 6153030, now seen corresponding path program 1 times [2021-11-23 02:39:10,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:10,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564348903] [2021-11-23 02:39:10,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:10,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:10,970 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 02:39:10,971 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:10,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564348903] [2021-11-23 02:39:10,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564348903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:10,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:10,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:10,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507600903] [2021-11-23 02:39:10,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:10,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:10,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:10,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:10,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:10,978 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:11,132 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2021-11-23 02:39:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:11,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-23 02:39:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:11,134 INFO L225 Difference]: With dead ends: 128 [2021-11-23 02:39:11,135 INFO L226 Difference]: Without dead ends: 128 [2021-11-23 02:39:11,135 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 02:39:11,137 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:11,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 117 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-23 02:39:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 69. [2021-11-23 02:39:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 34 states have (on average 2.176470588235294) internal successors, (74), 68 states have internal predecessors, (74), 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 02:39:11,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-11-23 02:39:11,147 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 4 [2021-11-23 02:39:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:11,147 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-11-23 02:39:11,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-11-23 02:39:11,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 02:39:11,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:11,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 02:39:11,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:39:11,149 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:11,150 INFO L85 PathProgramCache]: Analyzing trace with hash 6311657, now seen corresponding path program 1 times [2021-11-23 02:39:11,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:11,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841915367] [2021-11-23 02:39:11,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:11,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:11,206 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 02:39:11,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:11,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841915367] [2021-11-23 02:39:11,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841915367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:11,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:11,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:11,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087534555] [2021-11-23 02:39:11,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:11,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:11,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:11,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:11,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:11,209 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:11,250 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2021-11-23 02:39:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:11,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-23 02:39:11,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:11,253 INFO L225 Difference]: With dead ends: 79 [2021-11-23 02:39:11,254 INFO L226 Difference]: Without dead ends: 79 [2021-11-23 02:39:11,254 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 02:39:11,261 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 10 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:11,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 120 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-23 02:39:11,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 70. [2021-11-23 02:39:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 35 states have (on average 2.142857142857143) internal successors, (75), 69 states have internal predecessors, (75), 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 02:39:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2021-11-23 02:39:11,269 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 4 [2021-11-23 02:39:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:11,274 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2021-11-23 02:39:11,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:11,274 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2021-11-23 02:39:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:39:11,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:11,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:11,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:39:11,276 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:11,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:11,277 INFO L85 PathProgramCache]: Analyzing trace with hash 209673289, now seen corresponding path program 1 times [2021-11-23 02:39:11,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:11,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450320508] [2021-11-23 02:39:11,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:11,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:11,359 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 02:39:11,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:11,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450320508] [2021-11-23 02:39:11,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450320508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:11,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:11,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:11,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708364819] [2021-11-23 02:39:11,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:11,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:11,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:11,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:11,362 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 02:39:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:11,401 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2021-11-23 02:39:11,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:11,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-23 02:39:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:11,403 INFO L225 Difference]: With dead ends: 76 [2021-11-23 02:39:11,403 INFO L226 Difference]: Without dead ends: 76 [2021-11-23 02:39:11,403 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 02:39:11,405 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 1 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:11,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 115 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:11,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-23 02:39:11,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2021-11-23 02:39:11,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 40 states have (on average 2.0) internal successors, (80), 74 states have internal predecessors, (80), 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 02:39:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2021-11-23 02:39:11,412 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 8 [2021-11-23 02:39:11,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:11,413 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2021-11-23 02:39:11,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 02:39:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2021-11-23 02:39:11,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 02:39:11,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:11,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:11,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:39:11,414 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:11,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:11,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1499445486, now seen corresponding path program 1 times [2021-11-23 02:39:11,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:11,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540397202] [2021-11-23 02:39:11,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:11,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:11,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:11,480 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:11,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540397202] [2021-11-23 02:39:11,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540397202] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:11,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969301307] [2021-11-23 02:39:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:11,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:11,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:11,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:11,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:39:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:11,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:39:11,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:11,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:39:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:11,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:39:11,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969301307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:11,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:39:11,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2021-11-23 02:39:11,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685291362] [2021-11-23 02:39:11,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:11,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:11,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:11,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:39:11,711 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 02:39:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:11,779 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2021-11-23 02:39:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-11-23 02:39:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:11,781 INFO L225 Difference]: With dead ends: 82 [2021-11-23 02:39:11,781 INFO L226 Difference]: Without dead ends: 82 [2021-11-23 02:39:11,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:39:11,783 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 54 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:11,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 47 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-23 02:39:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2021-11-23 02:39:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 40 states have (on average 1.925) internal successors, (77), 71 states have internal predecessors, (77), 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 02:39:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2021-11-23 02:39:11,790 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 11 [2021-11-23 02:39:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:11,790 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2021-11-23 02:39:11,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 02:39:11,791 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2021-11-23 02:39:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 02:39:11,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:11,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:11,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 02:39:12,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:12,018 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:12,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1499445487, now seen corresponding path program 1 times [2021-11-23 02:39:12,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:12,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484983443] [2021-11-23 02:39:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:12,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:12,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:12,105 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:12,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484983443] [2021-11-23 02:39:12,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484983443] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:12,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124765312] [2021-11-23 02:39:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:12,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:12,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:12,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:12,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:39:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:12,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:39:12,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:12,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:12,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:12,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124765312] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:39:12,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [869470662] [2021-11-23 02:39:12,348 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-11-23 02:39:12,348 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:39:12,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:39:12,360 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:39:12,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:39:12,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:39:12,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:39:12,611 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 02:39:12,632 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 02:39:12,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:39:12,717 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 13 treesize of output 9 [2021-11-23 02:39:12,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:39:12,765 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 13 treesize of output 9 [2021-11-23 02:39:12,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:39:12,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:12,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:12,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:39:13,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:39:13,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:39:13,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:39:13,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:39:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:13,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:39:13,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,403 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:39:13,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 402 [2021-11-23 02:39:13,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,453 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 02:39:13,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 402 treesize of output 401 [2021-11-23 02:39:13,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,493 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 02:39:13,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 398 treesize of output 397 [2021-11-23 02:39:13,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:39:13,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:39:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:39:13,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:39:13,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:13,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:39:13,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:39:13,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:13,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:13,985 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:39:13,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 402 [2021-11-23 02:39:14,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:14,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:14,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:14,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:14,028 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 02:39:14,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 402 treesize of output 401 [2021-11-23 02:39:14,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:14,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:14,047 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:14,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:14,065 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 02:39:14,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 398 treesize of output 397 [2021-11-23 02:39:14,414 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-23 02:39:14,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 471 treesize of output 478 [2021-11-23 02:39:14,851 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-23 02:39:14,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 419 treesize of output 416 [2021-11-23 02:39:14,896 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 02:39:14,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 406 [2021-11-23 02:39:14,945 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-23 02:39:14,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 400 treesize of output 391 [2021-11-23 02:39:15,024 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:39:17,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [869470662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:17,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:39:17,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 10 [2021-11-23 02:39:17,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898889794] [2021-11-23 02:39:17,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:17,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:39:17,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:17,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:39:17,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:39:17,817 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 02:39:18,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:18,462 INFO L93 Difference]: Finished difference Result 83 states and 89 transitions. [2021-11-23 02:39:18,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:39:18,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 11 [2021-11-23 02:39:18,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:18,464 INFO L225 Difference]: With dead ends: 83 [2021-11-23 02:39:18,464 INFO L226 Difference]: Without dead ends: 83 [2021-11-23 02:39:18,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:39:18,466 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 9 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:18,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 95 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:39:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-23 02:39:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2021-11-23 02:39:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 78 states have internal predecessors, (85), 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 02:39:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2021-11-23 02:39:18,477 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 11 [2021-11-23 02:39:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:18,477 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2021-11-23 02:39:18,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 02:39:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2021-11-23 02:39:18,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:39:18,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:18,478 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-23 02:39:18,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:18,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 02:39:18,679 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:18,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:18,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1543488562, now seen corresponding path program 1 times [2021-11-23 02:39:18,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:18,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166348330] [2021-11-23 02:39:18,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:18,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:18,790 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:18,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166348330] [2021-11-23 02:39:18,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166348330] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:18,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613748361] [2021-11-23 02:39:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:18,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:18,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:18,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:18,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:39:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:18,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:39:18,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:18,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:39:18,900 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:39:18,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:39:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:18,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:19,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613748361] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:39:19,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [808011959] [2021-11-23 02:39:19,094 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-23 02:39:19,095 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:39:19,095 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:39:19,095 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:39:19,096 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:39:19,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:39:19,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:39:19,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:39:19,224 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 02:39:19,232 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 02:39:19,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:39:19,280 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 13 treesize of output 9 [2021-11-23 02:39:19,289 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 13 treesize of output 9 [2021-11-23 02:39:19,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:19,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:39:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 02:39:19,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:39:19,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:39:19,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:39:19,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:39:19,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:39:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:19,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:19,706 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:39:19,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 413 treesize of output 394 [2021-11-23 02:39:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:19,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:19,753 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 02:39:19,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 394 treesize of output 393 [2021-11-23 02:39:19,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:19,789 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 02:39:19,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 390 treesize of output 389 [2021-11-23 02:39:19,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:19,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 02:39:20,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:39:20,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:39:20,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:39:20,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:39:20,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:39:20,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:20,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:20,230 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 02:39:20,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 413 treesize of output 412 [2021-11-23 02:39:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:20,258 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:39:20,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 409 treesize of output 390 [2021-11-23 02:39:20,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,276 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:20,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:20,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:20,293 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 02:39:20,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 390 treesize of output 389 [2021-11-23 02:39:20,643 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-23 02:39:20,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 468 treesize of output 475 [2021-11-23 02:39:21,359 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 02:39:21,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 753 treesize of output 730 [2021-11-23 02:39:21,384 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:39:21,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 749 treesize of output 732 [2021-11-23 02:39:21,409 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:39:21,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 734 treesize of output 717 [2021-11-23 02:39:21,518 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:39:24,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [808011959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:24,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:39:24,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 14 [2021-11-23 02:39:24,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443691161] [2021-11-23 02:39:24,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:24,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:39:24,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:39:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:39:24,484 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:25,330 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2021-11-23 02:39:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:39:25,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 02:39:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:25,332 INFO L225 Difference]: With dead ends: 81 [2021-11-23 02:39:25,332 INFO L226 Difference]: Without dead ends: 81 [2021-11-23 02:39:25,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-11-23 02:39:25,333 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 7 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:25,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 113 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:39:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-23 02:39:25,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2021-11-23 02:39:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 48 states have (on average 1.7916666666666667) internal successors, (86), 79 states have internal predecessors, (86), 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 02:39:25,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2021-11-23 02:39:25,340 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 15 [2021-11-23 02:39:25,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:25,340 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2021-11-23 02:39:25,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2021-11-23 02:39:25,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:39:25,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:25,342 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:25,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:25,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:25,566 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:25,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:25,567 INFO L85 PathProgramCache]: Analyzing trace with hash -288796837, now seen corresponding path program 1 times [2021-11-23 02:39:25,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:25,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672072195] [2021-11-23 02:39:25,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:25,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:25,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:25,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672072195] [2021-11-23 02:39:25,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672072195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:25,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:25,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:25,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098333057] [2021-11-23 02:39:25,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:25,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:25,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:25,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:25,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:25,650 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:25,692 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2021-11-23 02:39:25,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:25,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 02:39:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:25,693 INFO L225 Difference]: With dead ends: 77 [2021-11-23 02:39:25,693 INFO L226 Difference]: Without dead ends: 77 [2021-11-23 02:39:25,694 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 02:39:25,694 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 54 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:25,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 43 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-23 02:39:25,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-11-23 02:39:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 48 states have (on average 1.7291666666666667) internal successors, (83), 76 states have internal predecessors, (83), 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 02:39:25,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2021-11-23 02:39:25,706 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 19 [2021-11-23 02:39:25,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:25,706 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2021-11-23 02:39:25,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:25,706 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2021-11-23 02:39:25,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:39:25,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:25,709 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:25,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:39:25,709 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:25,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash -727074723, now seen corresponding path program 1 times [2021-11-23 02:39:25,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:25,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059111067] [2021-11-23 02:39:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:25,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:25,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:25,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059111067] [2021-11-23 02:39:25,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059111067] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:25,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89305957] [2021-11-23 02:39:25,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:25,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:25,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:25,906 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:25,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:39:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:25,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 02:39:25,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:25,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:39:26,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:26,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-23 02:39:26,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:26,097 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-11-23 02:39:26,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:39:26,218 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:39:26,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 27 [2021-11-23 02:39:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:26,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:38,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89305957] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:39:38,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1220425237] [2021-11-23 02:39:38,583 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-11-23 02:39:38,583 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:39:38,584 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:39:38,584 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:39:38,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:39:38,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:39:38,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:39:38,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:39:38,692 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 02:39:38,702 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 02:39:38,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:39:38,740 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 13 treesize of output 9 [2021-11-23 02:39:38,751 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 13 treesize of output 9 [2021-11-23 02:39:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:38,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:39:38,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:38,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 02:39:38,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:39:38,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:39:38,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:38,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:39:39,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:39:39,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:39:39,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,101 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 02:39:39,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:39,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,145 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 02:39:39,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:39,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:39,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-23 02:39:39,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:39,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-23 02:39:39,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:39:39,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:39:39,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:39:39,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:39:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:39,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:39:39,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:39:39,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:39,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,787 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 41 treesize of output 46 [2021-11-23 02:39:39,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,804 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 41 treesize of output 46 [2021-11-23 02:39:39,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:39:39,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:39:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:39,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:39:40,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:39:40,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:39:40,248 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 19 treesize of output 1 [2021-11-23 02:39:40,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:39:40,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:39:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,325 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:39:40,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:39:40,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,347 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:39:40,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:39:40,364 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 19 treesize of output 1 [2021-11-23 02:39:40,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:40,441 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:39:40,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:39:40,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:40,480 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:39:40,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:39:40,499 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 11 treesize of output 7 [2021-11-23 02:39:40,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:39:40,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:39:40,579 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 02:39:40,586 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 02:39:40,592 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 11 treesize of output 7 [2021-11-23 02:39:40,648 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 02:39:40,675 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 02:39:40,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:40,698 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:39:40,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 216 [2021-11-23 02:39:40,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,789 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:40,795 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:39:40,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 216 [2021-11-23 02:39:40,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:40,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:40,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:39:40,892 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:39:44,261 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1784#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_node_create_~data#1| |ULTIMATE.start_node_create_#in~data#1|) (= (select (select |#memory_int| |ULTIMATE.start_node_create_~temp~0#1.base|) |ULTIMATE.start_node_create_~temp~0#1.offset|) |ULTIMATE.start_node_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1) (= |ULTIMATE.start_dll_prepend_#in~head#1.offset| |ULTIMATE.start_dll_prepend_~head#1.offset|) (= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (= |ULTIMATE.start_main_~data~0#1| |ULTIMATE.start_dll_prepend_#in~data#1|) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (= |ULTIMATE.start_node_create_~temp~0#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (= |ULTIMATE.start_dll_prepend_#in~head#1.base| |ULTIMATE.start_dll_prepend_~head#1.base|) (= 12 (select |#length| |ULTIMATE.start_node_create_~temp~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (= |ULTIMATE.start_dll_prepend_#in~data#1| |ULTIMATE.start_dll_prepend_~data#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_node_create_#in~data#1| |ULTIMATE.start_dll_prepend_~data#1|) (= |ULTIMATE.start_node_create_#res#1.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (= |ULTIMATE.start_dll_prepend_#in~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (< |ULTIMATE.start_node_create_~temp~0#1.base| |#StackHeapBarrier|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_prepend_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |#StackHeapBarrier|) (not (= (select |#valid| |ULTIMATE.start_dll_prepend_~head#1.base|) 1)) (= |ULTIMATE.start_dll_prepend_~new_head~1#1.base| |ULTIMATE.start_node_create_#res#1.base|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (not (= |ULTIMATE.start_node_create_~temp~0#1.base| 0)) (= |#NULL.base| 0))' at error location [2021-11-23 02:39:44,261 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:39:44,261 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:39:44,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 14 [2021-11-23 02:39:44,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310199955] [2021-11-23 02:39:44,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:39:44,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 02:39:44,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 02:39:44,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=612, Unknown=6, NotChecked=0, Total=756 [2021-11-23 02:39:44,264 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 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 02:39:44,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:44,473 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2021-11-23 02:39:44,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:39:44,474 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 02:39:44,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:44,475 INFO L225 Difference]: With dead ends: 85 [2021-11-23 02:39:44,475 INFO L226 Difference]: Without dead ends: 85 [2021-11-23 02:39:44,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=183, Invalid=741, Unknown=6, NotChecked=0, Total=930 [2021-11-23 02:39:44,476 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 115 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:44,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 182 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 120 Invalid, 0 Unknown, 112 Unchecked, 0.1s Time] [2021-11-23 02:39:44,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-23 02:39:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 74. [2021-11-23 02:39:44,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 73 states have internal predecessors, (80), 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 02:39:44,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2021-11-23 02:39:44,484 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 22 [2021-11-23 02:39:44,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:44,485 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2021-11-23 02:39:44,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 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 02:39:44,485 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2021-11-23 02:39:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:39:44,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:44,486 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:44,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:44,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:44,706 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:44,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:44,706 INFO L85 PathProgramCache]: Analyzing trace with hash -727074722, now seen corresponding path program 1 times [2021-11-23 02:39:44,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:44,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790280068] [2021-11-23 02:39:44,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:44,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:44,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 02:39:44,874 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:44,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790280068] [2021-11-23 02:39:44,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790280068] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:44,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527317586] [2021-11-23 02:39:44,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:44,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:44,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:44,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:44,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:39:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:44,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 02:39:44,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:44,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:39:44,992 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 02:39:44,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 15 treesize of output 17 [2021-11-23 02:39:45,131 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:39:45,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2021-11-23 02:39:45,289 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:39:45,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 32 [2021-11-23 02:39:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 02:39:45,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:39:45,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527317586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:45,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:39:45,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-23 02:39:45,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993898028] [2021-11-23 02:39:45,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:45,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:39:45,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:45,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:39:45,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:39:45,388 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:45,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:45,430 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2021-11-23 02:39:45,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:39:45,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 02:39:45,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:45,432 INFO L225 Difference]: With dead ends: 73 [2021-11-23 02:39:45,432 INFO L226 Difference]: Without dead ends: 73 [2021-11-23 02:39:45,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:39:45,433 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:45,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 115 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 65 Unchecked, 0.0s Time] [2021-11-23 02:39:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-23 02:39:45,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-23 02:39:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 72 states have internal predecessors, (79), 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 02:39:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2021-11-23 02:39:45,438 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 22 [2021-11-23 02:39:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:45,438 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2021-11-23 02:39:45,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:45,438 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2021-11-23 02:39:45,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 02:39:45,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:45,439 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2021-11-23 02:39:45,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-23 02:39:45,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 02:39:45,646 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:45,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1532969925, now seen corresponding path program 1 times [2021-11-23 02:39:45,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:45,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128437276] [2021-11-23 02:39:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:45,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:45,702 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:45,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:45,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128437276] [2021-11-23 02:39:45,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128437276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:45,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958406979] [2021-11-23 02:39:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:45,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:45,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:45,704 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:45,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:39:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:45,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:39:45,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:45,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:39:45,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958406979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:45,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:39:45,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-23 02:39:45,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127210763] [2021-11-23 02:39:45,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:45,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:39:45,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:45,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:39:45,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:45,832 INFO L87 Difference]: Start difference. First operand 73 states and 79 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 02:39:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:45,857 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2021-11-23 02:39:45,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:39:45,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2021-11-23 02:39:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:45,858 INFO L225 Difference]: With dead ends: 68 [2021-11-23 02:39:45,858 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 02:39:45,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:45,859 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 109 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:45,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 66 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 02:39:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-23 02:39:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 65 states have internal predecessors, (69), 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 02:39:45,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2021-11-23 02:39:45,863 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 23 [2021-11-23 02:39:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:45,864 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2021-11-23 02:39:45,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 02:39:45,864 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2021-11-23 02:39:45,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 02:39:45,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:45,866 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:45,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:46,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:46,086 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:46,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1064479892, now seen corresponding path program 1 times [2021-11-23 02:39:46,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:46,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470571111] [2021-11-23 02:39:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:46,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:46,120 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:46,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470571111] [2021-11-23 02:39:46,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470571111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:46,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:46,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:46,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645458873] [2021-11-23 02:39:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:46,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:39:46,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:46,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:39:46,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:39:46,122 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:46,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:46,188 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2021-11-23 02:39:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:39:46,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 02:39:46,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:46,190 INFO L225 Difference]: With dead ends: 75 [2021-11-23 02:39:46,190 INFO L226 Difference]: Without dead ends: 75 [2021-11-23 02:39:46,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:39:46,191 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 89 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:46,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 52 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:46,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-23 02:39:46,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2021-11-23 02:39:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.619047619047619) internal successors, (68), 64 states have internal predecessors, (68), 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 02:39:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2021-11-23 02:39:46,195 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 23 [2021-11-23 02:39:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:46,196 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2021-11-23 02:39:46,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:46,196 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2021-11-23 02:39:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 02:39:46,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:46,197 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:46,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:39:46,198 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1064479891, now seen corresponding path program 1 times [2021-11-23 02:39:46,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:46,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597798901] [2021-11-23 02:39:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:46,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:46,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:46,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597798901] [2021-11-23 02:39:46,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597798901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:46,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:46,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:39:46,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181217938] [2021-11-23 02:39:46,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:46,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:39:46,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:39:46,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:39:46,251 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:46,318 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-11-23 02:39:46,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:39:46,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 02:39:46,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:46,319 INFO L225 Difference]: With dead ends: 64 [2021-11-23 02:39:46,319 INFO L226 Difference]: Without dead ends: 64 [2021-11-23 02:39:46,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:46,320 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 95 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:46,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 50 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:46,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-23 02:39:46,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-23 02:39:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 63 states have internal predecessors, (67), 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 02:39:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2021-11-23 02:39:46,324 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 23 [2021-11-23 02:39:46,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:46,324 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2021-11-23 02:39:46,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2021-11-23 02:39:46,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:39:46,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:46,326 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:46,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:39:46,326 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:46,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:46,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1360864892, now seen corresponding path program 1 times [2021-11-23 02:39:46,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:46,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577392176] [2021-11-23 02:39:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:46,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:46,362 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:46,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:46,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577392176] [2021-11-23 02:39:46,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577392176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:46,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:46,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:46,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109719973] [2021-11-23 02:39:46,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:46,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:46,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:46,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:46,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:46,367 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 02:39:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:46,410 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2021-11-23 02:39:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:46,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 24 [2021-11-23 02:39:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:46,411 INFO L225 Difference]: With dead ends: 71 [2021-11-23 02:39:46,411 INFO L226 Difference]: Without dead ends: 71 [2021-11-23 02:39:46,412 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 02:39:46,412 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:46,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 44 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-23 02:39:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 61. [2021-11-23 02:39:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 60 states have internal predecessors, (64), 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 02:39:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2021-11-23 02:39:46,416 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 24 [2021-11-23 02:39:46,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:46,416 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2021-11-23 02:39:46,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 02:39:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2021-11-23 02:39:46,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:39:46,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:46,417 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:46,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:39:46,418 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:46,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:46,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1360864893, now seen corresponding path program 1 times [2021-11-23 02:39:46,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:46,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371423557] [2021-11-23 02:39:46,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:46,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:46,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:46,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371423557] [2021-11-23 02:39:46,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371423557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:46,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:46,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:46,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252576719] [2021-11-23 02:39:46,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:46,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:39:46,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:46,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:39:46,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:39:46,467 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 02:39:46,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:46,529 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-11-23 02:39:46,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:39:46,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 24 [2021-11-23 02:39:46,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:46,531 INFO L225 Difference]: With dead ends: 58 [2021-11-23 02:39:46,531 INFO L226 Difference]: Without dead ends: 58 [2021-11-23 02:39:46,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:39:46,532 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 83 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:46,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 48 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:46,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-23 02:39:46,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-23 02:39:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 57 states have internal predecessors, (61), 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 02:39:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2021-11-23 02:39:46,535 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 24 [2021-11-23 02:39:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:46,536 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2021-11-23 02:39:46,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 02:39:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2021-11-23 02:39:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:39:46,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:46,537 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:46,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 02:39:46,537 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1329740313, now seen corresponding path program 1 times [2021-11-23 02:39:46,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:46,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293573267] [2021-11-23 02:39:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:46,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:39:46,694 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:46,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293573267] [2021-11-23 02:39:46,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293573267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:46,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:46,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 02:39:46,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838643517] [2021-11-23 02:39:46,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:46,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:39:46,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:46,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:39:46,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:39:46,696 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 02:39:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:47,001 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2021-11-23 02:39:47,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:39:47,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 27 [2021-11-23 02:39:47,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:47,002 INFO L225 Difference]: With dead ends: 68 [2021-11-23 02:39:47,002 INFO L226 Difference]: Without dead ends: 68 [2021-11-23 02:39:47,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-11-23 02:39:47,003 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 167 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:47,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 71 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:39:47,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-23 02:39:47,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2021-11-23 02:39:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 56 states have internal predecessors, (60), 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 02:39:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2021-11-23 02:39:47,006 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 27 [2021-11-23 02:39:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:47,006 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2021-11-23 02:39:47,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 02:39:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2021-11-23 02:39:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:39:47,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:47,008 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:47,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:39:47,008 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:47,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:47,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1329740314, now seen corresponding path program 1 times [2021-11-23 02:39:47,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:47,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763013831] [2021-11-23 02:39:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:47,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:47,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:47,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763013831] [2021-11-23 02:39:47,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763013831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:47,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:47,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 02:39:47,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329888088] [2021-11-23 02:39:47,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:47,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:39:47,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:47,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:39:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:39:47,206 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 02:39:47,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:47,450 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2021-11-23 02:39:47,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:39:47,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 27 [2021-11-23 02:39:47,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:47,451 INFO L225 Difference]: With dead ends: 57 [2021-11-23 02:39:47,452 INFO L226 Difference]: Without dead ends: 57 [2021-11-23 02:39:47,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:39:47,453 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 90 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:47,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 86 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-23 02:39:47,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-11-23 02:39:47,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 55 states have internal predecessors, (59), 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 02:39:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2021-11-23 02:39:47,456 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 27 [2021-11-23 02:39:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:47,456 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2021-11-23 02:39:47,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 02:39:47,457 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2021-11-23 02:39:47,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:39:47,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:47,457 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:47,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 02:39:47,458 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:47,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:47,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1329751764, now seen corresponding path program 1 times [2021-11-23 02:39:47,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:47,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740629504] [2021-11-23 02:39:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:47,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:47,506 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:47,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740629504] [2021-11-23 02:39:47,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740629504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:47,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:47,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:39:47,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642394012] [2021-11-23 02:39:47,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:47,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:39:47,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:47,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:39:47,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:39:47,508 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:47,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:47,563 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2021-11-23 02:39:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:39:47,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-23 02:39:47,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:47,565 INFO L225 Difference]: With dead ends: 65 [2021-11-23 02:39:47,565 INFO L226 Difference]: Without dead ends: 65 [2021-11-23 02:39:47,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:39:47,566 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 90 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:47,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 39 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:47,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-23 02:39:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2021-11-23 02:39:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.380952380952381) internal successors, (58), 54 states have internal predecessors, (58), 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 02:39:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-23 02:39:47,569 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 27 [2021-11-23 02:39:47,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:47,569 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-23 02:39:47,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-23 02:39:47,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:39:47,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:47,571 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:47,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 02:39:47,571 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:47,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:47,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1329751765, now seen corresponding path program 1 times [2021-11-23 02:39:47,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:47,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64697398] [2021-11-23 02:39:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:47,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:47,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:47,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64697398] [2021-11-23 02:39:47,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64697398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:47,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:47,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:39:47,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466378492] [2021-11-23 02:39:47,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:47,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:39:47,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:47,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:39:47,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:47,658 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:47,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:47,712 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2021-11-23 02:39:47,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:39:47,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-23 02:39:47,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:47,713 INFO L225 Difference]: With dead ends: 53 [2021-11-23 02:39:47,714 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:39:47,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:47,714 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 86 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:47,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 33 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:47,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:39:47,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 02:39:47,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 52 states have internal predecessors, (56), 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 02:39:47,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2021-11-23 02:39:47,717 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 27 [2021-11-23 02:39:47,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:47,717 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2021-11-23 02:39:47,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2021-11-23 02:39:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 02:39:47,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:47,718 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:47,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 02:39:47,718 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:47,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2008737315, now seen corresponding path program 1 times [2021-11-23 02:39:47,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:47,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216577330] [2021-11-23 02:39:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:47,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:47,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:47,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216577330] [2021-11-23 02:39:47,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216577330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:47,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:47,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:39:47,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067944519] [2021-11-23 02:39:47,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:47,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:39:47,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:47,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:39:47,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:47,785 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 02:39:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:47,893 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2021-11-23 02:39:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:39:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 29 [2021-11-23 02:39:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:47,894 INFO L225 Difference]: With dead ends: 79 [2021-11-23 02:39:47,894 INFO L226 Difference]: Without dead ends: 79 [2021-11-23 02:39:47,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:39:47,895 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 117 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:47,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 76 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:47,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-23 02:39:47,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 54. [2021-11-23 02:39:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 53 states have internal predecessors, (59), 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 02:39:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2021-11-23 02:39:47,898 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 29 [2021-11-23 02:39:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:47,898 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2021-11-23 02:39:47,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 02:39:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2021-11-23 02:39:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 02:39:47,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:47,899 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:47,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 02:39:47,899 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:47,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:47,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2008737314, now seen corresponding path program 1 times [2021-11-23 02:39:47,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:47,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115058619] [2021-11-23 02:39:47,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:47,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:47,991 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:47,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115058619] [2021-11-23 02:39:47,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115058619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:47,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:47,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:39:47,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155119704] [2021-11-23 02:39:47,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:47,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:39:47,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:47,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:39:47,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:47,993 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 02:39:48,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:48,117 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2021-11-23 02:39:48,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:39:48,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 29 [2021-11-23 02:39:48,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:48,118 INFO L225 Difference]: With dead ends: 72 [2021-11-23 02:39:48,118 INFO L226 Difference]: Without dead ends: 72 [2021-11-23 02:39:48,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:39:48,119 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 164 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:48,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 62 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:48,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-23 02:39:48,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2021-11-23 02:39:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 54 states have internal predecessors, (59), 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 02:39:48,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-23 02:39:48,122 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 29 [2021-11-23 02:39:48,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:48,122 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-23 02:39:48,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 02:39:48,123 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-23 02:39:48,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 02:39:48,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:48,123 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:48,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 02:39:48,124 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:48,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2141241893, now seen corresponding path program 1 times [2021-11-23 02:39:48,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:48,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776305274] [2021-11-23 02:39:48,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:48,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:48,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:48,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776305274] [2021-11-23 02:39:48,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776305274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:48,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:48,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:39:48,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824678125] [2021-11-23 02:39:48,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:48,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:39:48,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:48,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:39:48,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:48,200 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 02:39:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:48,293 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-11-23 02:39:48,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:39:48,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 30 [2021-11-23 02:39:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:48,296 INFO L225 Difference]: With dead ends: 58 [2021-11-23 02:39:48,296 INFO L226 Difference]: Without dead ends: 58 [2021-11-23 02:39:48,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:39:48,296 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 108 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:48,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 82 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-23 02:39:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2021-11-23 02:39:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.288888888888889) internal successors, (58), 54 states have internal predecessors, (58), 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 02:39:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-23 02:39:48,299 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 30 [2021-11-23 02:39:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:48,299 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-23 02:39:48,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 02:39:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-23 02:39:48,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:39:48,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:48,300 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:48,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 02:39:48,300 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:48,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash -512026756, now seen corresponding path program 1 times [2021-11-23 02:39:48,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:48,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993420911] [2021-11-23 02:39:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:48,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:48,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:48,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993420911] [2021-11-23 02:39:48,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993420911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:48,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:48,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:39:48,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484037608] [2021-11-23 02:39:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:48,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:39:48,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:48,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:39:48,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:39:48,449 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:48,643 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2021-11-23 02:39:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:39:48,644 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-23 02:39:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:48,645 INFO L225 Difference]: With dead ends: 55 [2021-11-23 02:39:48,645 INFO L226 Difference]: Without dead ends: 55 [2021-11-23 02:39:48,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:39:48,646 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 79 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:48,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 59 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-23 02:39:48,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-23 02:39:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 54 states have internal predecessors, (57), 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 02:39:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-11-23 02:39:48,648 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 32 [2021-11-23 02:39:48,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:48,649 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-11-23 02:39:48,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-11-23 02:39:48,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 02:39:48,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:48,649 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2021-11-23 02:39:48,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 02:39:48,650 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:48,650 INFO L85 PathProgramCache]: Analyzing trace with hash -211100282, now seen corresponding path program 1 times [2021-11-23 02:39:48,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:48,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470051877] [2021-11-23 02:39:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:48,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:48,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:39:48,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:48,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470051877] [2021-11-23 02:39:48,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470051877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:48,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:48,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 02:39:48,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334891992] [2021-11-23 02:39:48,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:48,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 02:39:48,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:48,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 02:39:48,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:39:48,985 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:49,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:49,431 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-11-23 02:39:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:39:49,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-23 02:39:49,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:49,432 INFO L225 Difference]: With dead ends: 66 [2021-11-23 02:39:49,432 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 02:39:49,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-11-23 02:39:49,433 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 162 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:49,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 80 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:39:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 02:39:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2021-11-23 02:39:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 55 states have internal predecessors, (58), 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 02:39:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2021-11-23 02:39:49,436 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 34 [2021-11-23 02:39:49,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:49,436 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2021-11-23 02:39:49,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:39:49,437 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2021-11-23 02:39:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:39:49,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:49,437 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:49,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 02:39:49,437 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:39:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:49,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2045826363, now seen corresponding path program 1 times [2021-11-23 02:39:49,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:49,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280650521] [2021-11-23 02:39:49,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:49,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:39:49,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:49,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280650521] [2021-11-23 02:39:49,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280650521] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:49,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006942217] [2021-11-23 02:39:49,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:49,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:49,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:49,794 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:49,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:39:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:49,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-23 02:39:49,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:49,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:39:50,067 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 02:39:50,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-23 02:39:50,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 02:39:50,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,216 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 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-23 02:39:50,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 02:39:50,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:50,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-23 02:39:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:50,697 INFO L354 Elim1Store]: treesize reduction 80, result has 29.8 percent of original size [2021-11-23 02:39:50,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 61 [2021-11-23 02:39:50,829 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 02:39:50,870 INFO L354 Elim1Store]: treesize reduction 58, result has 29.3 percent of original size [2021-11-23 02:39:50,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 79 treesize of output 81 [2021-11-23 02:39:50,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 84 [2021-11-23 02:39:51,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:51,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:39:51,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:39:51,113 INFO L354 Elim1Store]: treesize reduction 59, result has 4.8 percent of original size [2021-11-23 02:39:51,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 33 [2021-11-23 02:39:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:51,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:51,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 103 [2021-11-23 02:39:53,479 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:39:53,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 329 [2021-11-23 02:40:58,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8336 treesize of output 8028 [2021-11-23 02:40:59,319 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 02:40:59,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [449598600] [2021-11-23 02:40:59,324 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-23 02:40:59,324 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:40:59,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:40:59,326 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:40:59,326 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:40:59,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:40:59,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:40:59,421 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 02:40:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:40:59,447 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 02:40:59,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:40:59,474 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 13 treesize of output 9 [2021-11-23 02:40:59,481 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 13 treesize of output 9 [2021-11-23 02:40:59,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:40:59,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:40:59,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:40:59,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:40:59,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:40:59,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:40:59,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:40:59,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:40:59,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:40:59,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:40:59,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,800 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 41 treesize of output 46 [2021-11-23 02:40:59,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:40:59,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,829 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 41 treesize of output 46 [2021-11-23 02:40:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:40:59,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:40:59,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:40:59,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:41:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,171 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-23 02:41:00,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 34 treesize of output 51 [2021-11-23 02:41:00,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:41:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:41:00,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:41:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:41:00,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:41:00,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:41:00,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,356 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 41 treesize of output 46 [2021-11-23 02:41:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,368 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 41 treesize of output 46 [2021-11-23 02:41:00,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:41:00,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:41:00,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:41:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:41:00,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:41:00,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:41:00,592 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 11 treesize of output 7 [2021-11-23 02:41:00,599 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 02:41:00,606 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 02:41:00,623 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 13 treesize of output 9 [2021-11-23 02:41:00,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:00,642 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 13 treesize of output 9 [2021-11-23 02:41:00,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:41:00,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:41:00,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:00,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:00,722 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 02:41:00,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:41:00,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:00,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:00,757 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:41:00,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-23 02:41:00,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:41:00,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:41:00,856 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 02:41:00,862 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 02:41:00,869 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 11 treesize of output 7 [2021-11-23 02:41:00,885 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 13 treesize of output 9 [2021-11-23 02:41:00,894 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 13 treesize of output 9 [2021-11-23 02:41:00,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:00,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:41:00,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:41:00,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:00,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:00,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:00,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:00,998 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:41:00,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-23 02:41:01,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,011 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:01,020 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 02:41:01,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:41:01,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:41:01,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:41:01,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:41:01,184 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 19 treesize of output 1 [2021-11-23 02:41:01,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:41:01,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,248 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:41:01,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:41:01,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,280 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:41:01,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:41:01,294 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 19 treesize of output 1 [2021-11-23 02:41:01,340 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 11 treesize of output 7 [2021-11-23 02:41:01,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,357 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:01,370 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:41:01,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:41:01,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:01,401 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:41:01,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:41:01,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:01,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,479 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:41:01,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:41:01,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:01,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:01,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,519 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:41:01,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:41:01,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,694 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-23 02:41:01,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 215 treesize of output 191 [2021-11-23 02:41:01,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,768 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-23 02:41:01,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 223 treesize of output 215 [2021-11-23 02:41:01,815 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-23 02:41:01,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 210 treesize of output 196 [2021-11-23 02:41:01,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,943 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-23 02:41:01,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 401 treesize of output 334 [2021-11-23 02:41:01,958 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:01,974 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:41:01,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 406 [2021-11-23 02:41:01,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:01,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:02,022 INFO L354 Elim1Store]: treesize reduction 106, result has 23.2 percent of original size [2021-11-23 02:41:02,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 406 treesize of output 373 [2021-11-23 02:41:04,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:41:04,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:41:04,948 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 02:41:04,956 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 11 treesize of output 7 [2021-11-23 02:41:04,962 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 02:41:04,983 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 13 treesize of output 9 [2021-11-23 02:41:04,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:04,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:05,002 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 13 treesize of output 9 [2021-11-23 02:41:05,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:05,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:41:05,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:05,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:41:05,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:05,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:41:05,111 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:41:22,453 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4323#(and (<= |ULTIMATE.start_dll_prepend_~data#1| 1) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= 1 |ULTIMATE.start_dll_prepend_#in~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_prepend_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.offset|) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.base|) (<= |ULTIMATE.start_dll_prepend_~head#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_dll_prepend_~new_head~1#1.offset|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_prepend_~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-23 02:41:22,453 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:41:22,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:41:22,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-11-23 02:41:22,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604619816] [2021-11-23 02:41:22,453 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 02:41:22,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 02:41:22,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:22,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 02:41:22,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=3572, Unknown=15, NotChecked=0, Total=3906 [2021-11-23 02:41:22,456 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 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 02:41:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:24,986 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2021-11-23 02:41:24,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 02:41:24,986 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 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 35 [2021-11-23 02:41:24,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:24,987 INFO L225 Difference]: With dead ends: 85 [2021-11-23 02:41:24,987 INFO L226 Difference]: Without dead ends: 85 [2021-11-23 02:41:24,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1749 ImplicationChecksByTransitivity, 80.6s TimeCoverageRelationStatistics Valid=507, Invalid=5178, Unknown=15, NotChecked=0, Total=5700 [2021-11-23 02:41:24,990 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 312 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:24,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 94 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:41:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-23 02:41:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 58. [2021-11-23 02:41:24,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 57 states have internal predecessors, (62), 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 02:41:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-11-23 02:41:24,993 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 35 [2021-11-23 02:41:24,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:24,993 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-23 02:41:24,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 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 02:41:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-11-23 02:41:24,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:41:24,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:24,994 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:25,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 02:41:25,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-23 02:41:25,194 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:41:25,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:25,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2045826364, now seen corresponding path program 1 times [2021-11-23 02:41:25,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:25,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488936608] [2021-11-23 02:41:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:25,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:41:25,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:25,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488936608] [2021-11-23 02:41:25,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488936608] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:41:25,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069029628] [2021-11-23 02:41:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:25,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:41:25,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:25,816 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:41:25,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 02:41:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:25,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-23 02:41:25,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:41:25,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:41:26,104 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 02:41:26,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-23 02:41:26,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:41:26,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 02:41:26,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,261 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 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:41:26,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,278 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 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-23 02:41:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 02:41:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,370 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 31 [2021-11-23 02:41:26,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,547 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:26,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-23 02:41:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:41:26,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 02:41:26,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,845 INFO L354 Elim1Store]: treesize reduction 90, result has 21.1 percent of original size [2021-11-23 02:41:26,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 96 [2021-11-23 02:41:26,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:41:26,891 INFO L354 Elim1Store]: treesize reduction 114, result has 17.4 percent of original size [2021-11-23 02:41:26,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 104 treesize of output 101 [2021-11-23 02:41:27,045 INFO L354 Elim1Store]: treesize reduction 116, result has 12.8 percent of original size [2021-11-23 02:41:27,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 210 treesize of output 132 [2021-11-23 02:41:27,072 INFO L354 Elim1Store]: treesize reduction 188, result has 13.4 percent of original size [2021-11-23 02:41:27,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 186 treesize of output 144 [2021-11-23 02:41:27,409 INFO L354 Elim1Store]: treesize reduction 90, result has 3.2 percent of original size [2021-11-23 02:41:27,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 155 treesize of output 84 [2021-11-23 02:41:27,425 INFO L354 Elim1Store]: treesize reduction 90, result has 3.2 percent of original size [2021-11-23 02:41:27,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 41 [2021-11-23 02:41:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:41:27,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:41:27,902 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:41:27,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 315 treesize of output 319 [2021-11-23 02:42:56,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27142 treesize of output 26578 [2021-11-23 02:42:57,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 469218 treesize of output 458046 [2021-11-23 02:43:10,675 WARN L227 SmtUtils]: Spent 13.50s on a formula simplification. DAG size of input: 652 DAG size of output: 649 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:43:12,956 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 02:43:12,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [259631787] [2021-11-23 02:43:12,959 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-23 02:43:12,959 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:43:12,960 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:43:12,960 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:43:12,960 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:43:12,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:12,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:12,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:43:13,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:43:13,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:43:13,056 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 02:43:13,066 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 02:43:13,085 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 13 treesize of output 9 [2021-11-23 02:43:13,093 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 13 treesize of output 9 [2021-11-23 02:43:13,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:43:13,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:43:13,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:13,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:13,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:43:13,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:43:13,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:43:13,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:43:13,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:43:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:43:13,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:43:13,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,412 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 41 treesize of output 46 [2021-11-23 02:43:13,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:43:13,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,439 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 41 treesize of output 46 [2021-11-23 02:43:13,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:43:13,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:43:13,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:43:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,793 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-23 02:43:13,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 34 treesize of output 51 [2021-11-23 02:43:13,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:43:13,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:43:13,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:43:13,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:43:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:43:13,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:43:13,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:13,991 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 41 treesize of output 46 [2021-11-23 02:43:14,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:43:14,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,030 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 41 treesize of output 46 [2021-11-23 02:43:14,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:43:14,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:43:14,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:43:14,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:43:14,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:43:14,179 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 02:43:14,185 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 02:43:14,191 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 11 treesize of output 7 [2021-11-23 02:43:14,205 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 13 treesize of output 9 [2021-11-23 02:43:14,211 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 13 treesize of output 9 [2021-11-23 02:43:14,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:14,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:14,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:14,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:14,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:14,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,298 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:14,309 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:43:14,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-23 02:43:14,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,321 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:14,346 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 02:43:14,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:43:14,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:43:14,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:43:14,428 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 02:43:14,434 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 02:43:14,440 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 11 treesize of output 7 [2021-11-23 02:43:14,455 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 13 treesize of output 9 [2021-11-23 02:43:14,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:14,472 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 13 treesize of output 9 [2021-11-23 02:43:14,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:14,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:14,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:14,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:14,559 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 02:43:14,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:43:14,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:14,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:14,599 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:43:14,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-23 02:43:14,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:43:14,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:43:14,753 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 19 treesize of output 1 [2021-11-23 02:43:14,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:43:14,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:43:14,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,819 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:43:14,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:43:14,834 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 19 treesize of output 1 [2021-11-23 02:43:14,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,854 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:43:14,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:43:14,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,903 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:14,919 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:43:14,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:43:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:14,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:14,961 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:43:14,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:43:14,980 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 11 treesize of output 7 [2021-11-23 02:43:15,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:15,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,089 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:43:15,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:43:15,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:15,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,115 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:43:15,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:43:15,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:15,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,387 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-23 02:43:15,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 215 treesize of output 189 [2021-11-23 02:43:15,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,469 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-23 02:43:15,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 223 treesize of output 217 [2021-11-23 02:43:15,509 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-23 02:43:15,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 198 [2021-11-23 02:43:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,638 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-23 02:43:15,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 403 treesize of output 334 [2021-11-23 02:43:15,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:15,671 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:43:15,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 406 [2021-11-23 02:43:15,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:15,721 INFO L354 Elim1Store]: treesize reduction 106, result has 23.2 percent of original size [2021-11-23 02:43:15,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 406 treesize of output 373 [2021-11-23 02:43:18,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:43:18,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:43:18,419 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 02:43:18,425 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 11 treesize of output 7 [2021-11-23 02:43:18,433 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 02:43:18,447 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 13 treesize of output 9 [2021-11-23 02:43:18,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:18,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:18,460 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 13 treesize of output 9 [2021-11-23 02:43:18,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:18,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:43:18,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:18,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:18,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:18,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:43:18,552 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:43:28,359 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4719#(and (<= |ULTIMATE.start_dll_prepend_~data#1| 1) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_dll_prepend_#in~data#1|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (< (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8))) (<= |ULTIMATE.start_dll_prepend_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.offset|) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.base|) (<= |ULTIMATE.start_dll_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_dll_prepend_~new_head~1#1.offset|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_prepend_~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2021-11-23 02:43:28,359 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:43:28,359 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:43:28,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-23 02:43:28,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215789481] [2021-11-23 02:43:28,359 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 02:43:28,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 02:43:28,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:28,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 02:43:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=4400, Unknown=30, NotChecked=0, Total=4692 [2021-11-23 02:43:28,362 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 17 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:43:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:30,602 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2021-11-23 02:43:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 02:43:30,611 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-23 02:43:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:30,612 INFO L225 Difference]: With dead ends: 98 [2021-11-23 02:43:30,613 INFO L226 Difference]: Without dead ends: 98 [2021-11-23 02:43:30,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1817 ImplicationChecksByTransitivity, 99.7s TimeCoverageRelationStatistics Valid=501, Invalid=6441, Unknown=30, NotChecked=0, Total=6972 [2021-11-23 02:43:30,616 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 483 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:30,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 101 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:43:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-23 02:43:30,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 59. [2021-11-23 02:43:30,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 58 states have internal predecessors, (62), 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 02:43:30,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2021-11-23 02:43:30,619 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 35 [2021-11-23 02:43:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:30,619 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2021-11-23 02:43:30,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:43:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2021-11-23 02:43:30,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 02:43:30,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:30,621 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2021-11-23 02:43:30,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 02:43:30,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-23 02:43:30,842 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:43:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1003819459, now seen corresponding path program 1 times [2021-11-23 02:43:30,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:30,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113402275] [2021-11-23 02:43:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:30,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:43:31,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:31,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113402275] [2021-11-23 02:43:31,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113402275] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:43:31,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580604111] [2021-11-23 02:43:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:31,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:43:31,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:43:31,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:43:31,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 02:43:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:31,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-23 02:43:31,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:43:31,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:43:31,642 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 02:43:31,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-23 02:43:31,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:31,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-11-23 02:43:31,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:31,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:31,772 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 0 case distinctions, treesize of input 39 treesize of output 37 [2021-11-23 02:43:31,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:31,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:31,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:31,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2021-11-23 02:43:32,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:32,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:32,013 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:32,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 38 [2021-11-23 02:43:32,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:32,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:32,269 INFO L354 Elim1Store]: treesize reduction 80, result has 29.8 percent of original size [2021-11-23 02:43:32,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 60 [2021-11-23 02:43:32,407 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 02:43:32,438 INFO L354 Elim1Store]: treesize reduction 58, result has 29.3 percent of original size [2021-11-23 02:43:32,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 78 treesize of output 80 [2021-11-23 02:43:32,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 83 [2021-11-23 02:43:32,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:32,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:43:32,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:43:32,643 INFO L354 Elim1Store]: treesize reduction 59, result has 4.8 percent of original size [2021-11-23 02:43:32,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 32 [2021-11-23 02:43:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:43:32,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:43:32,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 102 [2021-11-23 02:44:01,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24238 treesize of output 23682 [2021-11-23 02:44:02,234 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 02:44:02,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [706074503] [2021-11-23 02:44:02,237 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2021-11-23 02:44:02,237 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:44:02,237 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:44:02,237 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:44:02,237 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:44:02,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:44:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:44:02,334 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 02:44:02,340 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 02:44:02,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:44:02,368 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 13 treesize of output 9 [2021-11-23 02:44:02,374 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 13 treesize of output 9 [2021-11-23 02:44:02,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:44:02,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:44:02,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:44:02,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:44:02,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 02:44:02,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:44:02,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:44:02,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-23 02:44:02,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:44:02,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:44:02,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:44:02,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,680 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 02:44:02,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,691 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 02:44:02,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:44:02,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:02,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-23 02:44:02,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,767 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:02,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-23 02:44:02,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:44:02,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:02,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:44:03,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:44:03,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:44:03,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:44:03,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:44:03,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:44:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:44:03,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:44:03,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,177 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 41 treesize of output 46 [2021-11-23 02:44:03,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,193 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 41 treesize of output 46 [2021-11-23 02:44:03,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:44:03,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:44:03,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:44:03,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:44:03,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:44:03,535 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 19 treesize of output 1 [2021-11-23 02:44:03,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:44:03,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:44:03,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,605 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:44:03,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:44:03,614 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 19 treesize of output 1 [2021-11-23 02:44:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,630 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:44:03,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:44:03,661 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 11 treesize of output 7 [2021-11-23 02:44:03,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:03,686 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:44:03,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:44:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:03,719 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:44:03,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:44:03,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:03,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,787 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:44:03,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:44:03,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:03,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,809 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:44:03,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:44:03,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:44:03,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:03,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,010 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-23 02:44:04,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 215 treesize of output 189 [2021-11-23 02:44:04,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,104 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-23 02:44:04,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 221 treesize of output 215 [2021-11-23 02:44:04,140 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-23 02:44:04,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 210 treesize of output 196 [2021-11-23 02:44:04,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,348 INFO L354 Elim1Store]: treesize reduction 126, result has 20.8 percent of original size [2021-11-23 02:44:04,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 368 treesize of output 317 [2021-11-23 02:44:04,365 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:04,388 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:44:04,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 416 treesize of output 404 [2021-11-23 02:44:04,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:04,463 INFO L354 Elim1Store]: treesize reduction 117, result has 36.1 percent of original size [2021-11-23 02:44:04,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 404 treesize of output 408 [2021-11-23 02:44:12,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:44:12,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:44:12,491 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 02:44:12,497 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 02:44:12,506 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 11 treesize of output 7 [2021-11-23 02:44:12,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:12,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:44:12,524 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 13 treesize of output 9 [2021-11-23 02:44:12,531 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 13 treesize of output 9 [2021-11-23 02:44:12,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:12,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:44:12,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:12,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:44:12,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:12,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:44:12,621 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:44:22,482 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5134#(and (<= |ULTIMATE.start_dll_prepend_~data#1| 1) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= 1 |ULTIMATE.start_dll_prepend_#in~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_prepend_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.offset|) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.base|) (<= |ULTIMATE.start_dll_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.offset|) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.base|) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (<= 0 |ULTIMATE.start_dll_prepend_~new_head~1#1.offset|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_prepend_~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-23 02:44:22,482 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:44:22,482 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:44:22,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-11-23 02:44:22,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842175696] [2021-11-23 02:44:22,483 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 02:44:22,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 02:44:22,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:22,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 02:44:22,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=3886, Unknown=12, NotChecked=0, Total=4160 [2021-11-23 02:44:22,485 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:23,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:23,767 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2021-11-23 02:44:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 02:44:23,767 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-23 02:44:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:23,768 INFO L225 Difference]: With dead ends: 72 [2021-11-23 02:44:23,768 INFO L226 Difference]: Without dead ends: 72 [2021-11-23 02:44:23,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1813 ImplicationChecksByTransitivity, 39.3s TimeCoverageRelationStatistics Valid=475, Invalid=5675, Unknown=12, NotChecked=0, Total=6162 [2021-11-23 02:44:23,770 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 210 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:23,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 120 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:44:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-23 02:44:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59. [2021-11-23 02:44:23,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 58 states have internal predecessors, (61), 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 02:44:23,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2021-11-23 02:44:23,773 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 36 [2021-11-23 02:44:23,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:23,773 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2021-11-23 02:44:23,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2021-11-23 02:44:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 02:44:23,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:23,775 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:23,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 02:44:23,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-23 02:44:23,990 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:44:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:23,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1629239134, now seen corresponding path program 1 times [2021-11-23 02:44:23,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:23,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675145597] [2021-11-23 02:44:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:23,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:24,940 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:24,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675145597] [2021-11-23 02:44:24,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675145597] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:44:24,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112594771] [2021-11-23 02:44:24,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:24,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:44:24,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:44:24,942 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:44:24,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 02:44:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:25,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-23 02:44:25,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:44:25,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:44:25,146 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 02:44:25,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-11-23 02:44:25,410 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:44:25,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-23 02:44:25,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:44:25,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:25,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:44:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:25,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:44:25,678 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-11-23 02:44:25,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 02:44:25,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:25,846 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-23 02:44:25,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2021-11-23 02:44:25,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:25,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 51 [2021-11-23 02:44:25,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:25,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 40 [2021-11-23 02:44:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:25,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:44:26,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,079 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 0 case distinctions, treesize of input 69 treesize of output 63 [2021-11-23 02:44:26,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2021-11-23 02:44:26,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:44:26,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-23 02:44:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 54 [2021-11-23 02:44:26,285 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 02:44:26,286 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 53 treesize of output 52 [2021-11-23 02:44:26,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:26,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2021-11-23 02:44:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:44:26,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 64 [2021-11-23 02:44:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 57 [2021-11-23 02:44:26,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,974 INFO L354 Elim1Store]: treesize reduction 90, result has 21.1 percent of original size [2021-11-23 02:44:26,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 161 treesize of output 123 [2021-11-23 02:44:26,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:26,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:44:27,005 INFO L354 Elim1Store]: treesize reduction 114, result has 17.4 percent of original size [2021-11-23 02:44:27,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 147 treesize of output 140 [2021-11-23 02:44:27,019 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-11-23 02:44:27,020 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 139 treesize of output 117 [2021-11-23 02:44:27,229 INFO L354 Elim1Store]: treesize reduction 116, result has 12.8 percent of original size [2021-11-23 02:44:27,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 243 treesize of output 161 [2021-11-23 02:44:27,259 INFO L354 Elim1Store]: treesize reduction 188, result has 13.4 percent of original size [2021-11-23 02:44:27,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 223 treesize of output 177 [2021-11-23 02:44:27,271 INFO L354 Elim1Store]: treesize reduction 45, result has 25.0 percent of original size [2021-11-23 02:44:27,271 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 163 treesize of output 151 [2021-11-23 02:44:27,916 INFO L354 Elim1Store]: treesize reduction 90, result has 3.2 percent of original size [2021-11-23 02:44:27,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 181 treesize of output 98 [2021-11-23 02:44:27,933 INFO L354 Elim1Store]: treesize reduction 90, result has 3.2 percent of original size [2021-11-23 02:44:27,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 51 [2021-11-23 02:44:28,183 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 02:44:28,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2021-11-23 02:44:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:28,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:45:22,423 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (v_DerPreprocessor_8 Int) (|ULTIMATE.start_node_create_~data#1| Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_33| Int) (|v_ULTIMATE.start_main_~ptr~0#1.offset_28| Int) (|v_ULTIMATE.start_dll_prepend_#t~mem8#1.offset_30| Int)) (let ((.cse7 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse13 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse15 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_8))) (store .cse15 .cse7 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse15) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))))) (.cse9 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_9))) (let ((.cse10 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store .cse9 .cse7 |v_ULTIMATE.start_dll_prepend_#t~mem8#1.offset_30|))) (.cse5 (select (select .cse13 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse6 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_33| 8))) (let ((.cse0 (let ((.cse14 (store .cse10 .cse5 (store (select .cse10 .cse5) .cse6 |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (store .cse14 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse14 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (let ((.cse11 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse8 (let ((.cse12 (store .cse13 .cse5 (store (select .cse13 .cse5) .cse6 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse12 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse12 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse1 (select (select .cse8 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ .cse11 4))) (or (< (select (select .cse0 .cse1) .cse2) |v_ULTIMATE.start_main_~ptr~0#1.offset_28|) (= (select (select (let ((.cse3 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_node_create_~temp~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| |ULTIMATE.start_node_create_~data#1|) .cse7 v_DerPreprocessor_7)))) (store .cse4 .cse5 (store (select .cse4 .cse5) .cse6 v_DerPreprocessor_6))))) (store .cse3 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse3 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| v_DerPreprocessor_5))) (select (select .cse8 .cse1) .cse2)) |v_ULTIMATE.start_main_~ptr~0#1.offset_28|) |c_ULTIMATE.start_main_~data~0#1|) (< |v_ULTIMATE.start_main_~ptr~0#1.offset_28| 0) (< (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse9) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|) |v_ULTIMATE.start_dll_prepend_#t~mem8#1.offset_30|) (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_33| (select (select .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (< .cse11 0))))))))) is different from false [2021-11-23 02:47:53,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54396 treesize of output 53424 [2021-11-23 02:47:53,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51581 treesize of output 51569 [2021-11-23 02:47:54,045 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 02:47:54,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [397043402] [2021-11-23 02:47:54,048 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2021-11-23 02:47:54,048 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:47:54,048 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:47:54,049 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:47:54,049 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:47:54,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:47:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:47:54,122 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 02:47:54,133 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 02:47:54,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:47:54,158 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 13 treesize of output 9 [2021-11-23 02:47:54,165 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 13 treesize of output 9 [2021-11-23 02:47:54,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:47:54,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:47:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:47:54,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:47:54,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:47:54,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:47:54,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:47:54,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:47:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:47:54,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:47:54,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:47:54,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,430 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 41 treesize of output 46 [2021-11-23 02:47:54,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,446 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 41 treesize of output 46 [2021-11-23 02:47:54,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:47:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:47:54,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:47:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:47:54,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-23 02:47:54,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:47:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:47:54,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-23 02:47:54,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:47:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 02:47:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:47:54,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,914 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 41 treesize of output 46 [2021-11-23 02:47:54,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:47:54,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,945 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 41 treesize of output 46 [2021-11-23 02:47:54,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:54,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:47:55,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-23 02:47:55,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-23 02:47:55,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:47:55,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:47:55,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:47:55,334 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 19 treesize of output 1 [2021-11-23 02:47:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:47:55,375 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 19 treesize of output 1 [2021-11-23 02:47:55,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,391 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:55,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:47:55,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,415 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:55,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 02:47:55,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:55,479 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:47:55,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:47:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:55,506 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:47:55,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-23 02:47:55,517 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 11 treesize of output 7 [2021-11-23 02:47:55,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:47:55,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:55,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,588 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:55,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:47:55,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:55,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,613 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:55,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-23 02:47:55,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,784 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-23 02:47:55,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 213 treesize of output 189 [2021-11-23 02:47:55,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:55,862 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-23 02:47:55,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 221 treesize of output 215 [2021-11-23 02:47:55,896 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-23 02:47:55,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 210 treesize of output 196 [2021-11-23 02:47:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:56,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:56,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:56,113 INFO L354 Elim1Store]: treesize reduction 94, result has 23.0 percent of original size [2021-11-23 02:47:56,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 401 treesize of output 366 [2021-11-23 02:47:56,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:56,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:56,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:56,170 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-23 02:47:56,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 429 treesize of output 354 [2021-11-23 02:47:56,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:56,210 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 02:47:56,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 450 treesize of output 438 [2021-11-23 02:47:58,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:47:58,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:47:58,721 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 02:47:58,726 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 11 treesize of output 7 [2021-11-23 02:47:58,731 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 02:47:58,746 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 13 treesize of output 9 [2021-11-23 02:47:58,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:58,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:47:58,771 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 13 treesize of output 9 [2021-11-23 02:47:58,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:58,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:47:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:58,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:47:58,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:58,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:47:58,880 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:48:11,141 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5548#(and (<= |ULTIMATE.start_dll_prepend_~data#1| 1) (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_prepend_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_dll_prepend_#in~data#1|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_prepend_#in~data#1| 1) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.offset|) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (= |ULTIMATE.start_main_~temp~2#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4))) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.base|) (<= |ULTIMATE.start_dll_prepend_~head#1.offset| 0) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= 0 |ULTIMATE.start_dll_prepend_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_prepend_~head#1.base|) (<= 0 |ULTIMATE.start_dll_prepend_~new_head~1#1.offset|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_prepend_~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~temp~2#1.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= 0 |ULTIMATE.start_main_~ptr~0#1.offset|))' at error location [2021-11-23 02:48:11,141 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:48:11,141 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:48:11,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-11-23 02:48:11,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829731840] [2021-11-23 02:48:11,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 02:48:11,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-23 02:48:11,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:48:11,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 02:48:11,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=5500, Unknown=63, NotChecked=150, Total=6006 [2021-11-23 02:48:11,144 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:48:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:48:14,046 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2021-11-23 02:48:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 02:48:14,047 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-23 02:48:14,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:48:14,048 INFO L225 Difference]: With dead ends: 70 [2021-11-23 02:48:14,048 INFO L226 Difference]: Without dead ends: 70 [2021-11-23 02:48:14,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2230 ImplicationChecksByTransitivity, 216.4s TimeCoverageRelationStatistics Valid=504, Invalid=7993, Unknown=63, NotChecked=182, Total=8742 [2021-11-23 02:48:14,051 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 185 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:48:14,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 137 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 02:48:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-23 02:48:14,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2021-11-23 02:48:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.24) internal successors, (62), 59 states have internal predecessors, (62), 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 02:48:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2021-11-23 02:48:14,054 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 38 [2021-11-23 02:48:14,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:48:14,055 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2021-11-23 02:48:14,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:48:14,055 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2021-11-23 02:48:14,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 02:48:14,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:48:14,056 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:48:14,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 02:48:14,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:48:14,266 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 37 more)] === [2021-11-23 02:48:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:48:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1033193885, now seen corresponding path program 2 times [2021-11-23 02:48:14,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:48:14,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279315794] [2021-11-23 02:48:14,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:48:14,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:48:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:48:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:48:15,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:48:15,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279315794] [2021-11-23 02:48:15,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279315794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:48:15,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845552323] [2021-11-23 02:48:15,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:48:15,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:48:15,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:48:15,334 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:48:15,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08bfe9bd-8633-4fb8-a673-5d0c0f38e763/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 02:48:15,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 02:48:15,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:48:15,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-23 02:48:15,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:48:15,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 02:48:15,911 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:48:15,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 02:48:16,042 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 13 treesize of output 9 [2021-11-23 02:48:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:16,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:48:16,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:16,234 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-23 02:48:16,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 43 [2021-11-23 02:48:16,508 INFO L354 Elim1Store]: treesize reduction 90, result has 37.9 percent of original size [2021-11-23 02:48:16,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 69 [2021-11-23 02:48:16,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:16,780 INFO L354 Elim1Store]: treesize reduction 236, result has 13.2 percent of original size [2021-11-23 02:48:16,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 170 treesize of output 118 [2021-11-23 02:48:16,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:16,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 141 [2021-11-23 02:48:17,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,082 INFO L354 Elim1Store]: treesize reduction 292, result has 11.0 percent of original size [2021-11-23 02:48:17,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 188 treesize of output 139 [2021-11-23 02:48:17,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,089 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 0 case distinctions, treesize of input 184 treesize of output 162 [2021-11-23 02:48:17,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,352 INFO L354 Elim1Store]: treesize reduction 336, result has 9.7 percent of original size [2021-11-23 02:48:17,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 202 treesize of output 145 [2021-11-23 02:48:17,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 142 [2021-11-23 02:48:17,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:48:17,965 INFO L354 Elim1Store]: treesize reduction 342, result has 9.5 percent of original size [2021-11-23 02:48:17,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 182 treesize of output 152 [2021-11-23 02:48:17,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:17,973 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:48:17,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 155 [2021-11-23 02:48:18,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:18,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:18,793 INFO L354 Elim1Store]: treesize reduction 424, result has 13.6 percent of original size [2021-11-23 02:48:18,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 198 treesize of output 174 [2021-11-23 02:48:18,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:18,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:48:18,829 INFO L354 Elim1Store]: treesize reduction 126, result has 16.0 percent of original size [2021-11-23 02:48:18,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 204 treesize of output 179 [2021-11-23 02:48:19,855 INFO L354 Elim1Store]: treesize reduction 434, result has 11.2 percent of original size [2021-11-23 02:48:19,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 303 treesize of output 197 [2021-11-23 02:48:19,876 INFO L354 Elim1Store]: treesize reduction 129, result has 11.6 percent of original size [2021-11-23 02:48:19,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 323 treesize of output 284 [2021-11-23 02:48:26,194 INFO L354 Elim1Store]: treesize reduction 130, result has 2.3 percent of original size [2021-11-23 02:48:26,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 303 treesize of output 259 [2021-11-23 02:48:34,499 INFO L354 Elim1Store]: treesize reduction 312, result has 10.1 percent of original size [2021-11-23 02:48:34,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 28 case distinctions, treesize of input 243 treesize of output 112 [2021-11-23 02:48:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:48:35,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:49:08,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1820 treesize of output 1800 [2021-11-23 02:50:02,845 INFO L354 Elim1Store]: treesize reduction 34, result has 82.9 percent of original size [2021-11-23 02:50:02,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 130477307699245482 treesize of output 130091065114469962