./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-cav19/array_init_nondet_vars.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-cav19/array_init_nondet_vars.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b36a429fc2ac304c1da00c90b438bd7c9bbfb7e9d7c6704fc9e7805ab1ca424f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:58:43,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:58:43,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:58:43,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:58:43,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:58:43,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:58:43,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:58:43,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:58:43,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:58:43,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:58:43,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:58:43,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:58:43,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:58:43,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:58:43,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:58:43,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:58:43,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:58:43,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:58:43,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:58:43,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:58:43,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:58:43,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:58:43,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:58:43,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:58:43,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:58:43,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:58:43,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:58:43,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:58:43,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:58:43,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:58:43,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:58:43,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:58:43,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:58:43,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:58:43,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:58:43,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:58:43,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:58:43,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:58:43,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:58:43,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:58:43,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:58:43,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:58:44,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:58:44,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:58:44,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:58:44,015 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:58:44,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:58:44,015 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:58:44,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:58:44,015 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:58:44,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:58:44,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:58:44,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:58:44,016 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:58:44,016 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:58:44,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:58:44,017 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:58:44,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:58:44,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:58:44,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:58:44,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:58:44,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:58:44,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:58:44,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:58:44,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:58:44,019 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:58:44,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:58:44,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:58:44,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:58:44,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:58:44,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:58:44,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:58:44,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:58:44,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:58:44,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:58:44,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:58:44,030 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:58:44,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:58:44,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:58:44,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:58:44,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:58:44,039 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_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36a429fc2ac304c1da00c90b438bd7c9bbfb7e9d7c6704fc9e7805ab1ca424f [2021-11-03 03:58:44,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:58:44,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:58:44,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:58:44,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:58:44,352 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:58:44,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/array-cav19/array_init_nondet_vars.c [2021-11-03 03:58:44,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/data/cf5083e30/c5ab5f9a0fd5486582ab08cf474166ad/FLAGd197c9410 [2021-11-03 03:58:44,935 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:58:44,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/sv-benchmarks/c/array-cav19/array_init_nondet_vars.c [2021-11-03 03:58:44,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/data/cf5083e30/c5ab5f9a0fd5486582ab08cf474166ad/FLAGd197c9410 [2021-11-03 03:58:45,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/data/cf5083e30/c5ab5f9a0fd5486582ab08cf474166ad [2021-11-03 03:58:45,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:58:45,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:58:45,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:58:45,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:58:45,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:58:45,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d12348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45, skipping insertion in model container [2021-11-03 03:58:45,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:58:45,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:58:45,506 WARN L228 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_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/sv-benchmarks/c/array-cav19/array_init_nondet_vars.c[413,426] [2021-11-03 03:58:45,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:58:45,527 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:58:45,539 WARN L228 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_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/sv-benchmarks/c/array-cav19/array_init_nondet_vars.c[413,426] [2021-11-03 03:58:45,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:58:45,557 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:58:45,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45 WrapperNode [2021-11-03 03:58:45,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:58:45,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:58:45,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:58:45,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:58:45,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:58:45,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:58:45,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:58:45,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:58:45,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:58:45,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:58:45,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:58:45,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:58:45,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (1/1) ... [2021-11-03 03:58:45,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:58:45,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:58:45,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:58:45,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:58:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:58:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:58:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:58:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:58:45,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:58:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:58:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:58:46,196 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:58:46,196 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-03 03:58:46,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:58:46 BoogieIcfgContainer [2021-11-03 03:58:46,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:58:46,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:58:46,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:58:46,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:58:46,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:58:45" (1/3) ... [2021-11-03 03:58:46,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32573be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:58:46, skipping insertion in model container [2021-11-03 03:58:46,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:45" (2/3) ... [2021-11-03 03:58:46,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32573be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:58:46, skipping insertion in model container [2021-11-03 03:58:46,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:58:46" (3/3) ... [2021-11-03 03:58:46,207 INFO L111 eAbstractionObserver]: Analyzing ICFG array_init_nondet_vars.c [2021-11-03 03:58:46,213 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:58:46,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:58:46,259 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:58:46,265 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:58:46,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:58:46,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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) [2021-11-03 03:58:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 03:58:46,281 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:46,282 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 03:58:46,282 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:58:46,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash 100231916, now seen corresponding path program 1 times [2021-11-03 03:58:46,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:58:46,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114639160] [2021-11-03 03:58:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:46,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:58:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:46,501 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:58:46,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114639160] [2021-11-03 03:58:46,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114639160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:58:46,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:58:46,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:58:46,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065891074] [2021-11-03 03:58:46,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:58:46,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:58:46,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:58:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:58:46,535 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-03 03:58:46,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:46,613 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2021-11-03 03:58:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:58:46,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-11-03 03:58:46,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:46,636 INFO L225 Difference]: With dead ends: 22 [2021-11-03 03:58:46,637 INFO L226 Difference]: Without dead ends: 13 [2021-11-03 03:58:46,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:58:46,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-03 03:58:46,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2021-11-03 03:58:46,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-11-03 03:58:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-03 03:58:46,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2021-11-03 03:58:46,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:46,685 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-03 03:58:46,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-03 03:58:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-03 03:58:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 03:58:46,686 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:46,686 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 03:58:46,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:58:46,687 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:58:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:46,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1182209878, now seen corresponding path program 1 times [2021-11-03 03:58:46,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:58:46,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743485810] [2021-11-03 03:58:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:46,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:58:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:46,860 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:58:46,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743485810] [2021-11-03 03:58:46,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743485810] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:58:46,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430922167] [2021-11-03 03:58:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:46,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:58:46,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:58:46,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:58:46,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 03:58:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:46,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 03:58:46,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:47,064 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 29 treesize of output 25 [2021-11-03 03:58:47,183 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 46 treesize of output 28 [2021-11-03 03:58:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:47,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:47,326 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 26 treesize of output 24 [2021-11-03 03:58:47,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 37 [2021-11-03 03:58:47,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:47,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430922167] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:58:47,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [407295783] [2021-11-03 03:58:47,399 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-03 03:58:47,400 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:58:47,405 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:58:47,410 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:58:47,411 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:58:47,446 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:58:47,448 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:47,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:58:47,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:47,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:58:47,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:58:47,477 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_29|], 36=[|v_#valid_44|]} [2021-11-03 03:58:47,490 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:47,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,492 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:58:47,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:47,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:47,539 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,563 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:47,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,569 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:47,626 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,674 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:58:47,674 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 43 treesize of output 42 [2021-11-03 03:58:47,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:47,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:47,681 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:47,703 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,709 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:58:47,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:58:47,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,714 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:58:47,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:47,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:47,737 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:58:47,755 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:47,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,757 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:47,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:58:47,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:58:47,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:58:47,796 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,806 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:47,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:47,808 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:47,823 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,828 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:58:47,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:58:47,833 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:47,833 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:58:47,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:47,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:47,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:47,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:47,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:47,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:58:48,003 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:48,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,043 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 290 [2021-11-03 03:58:48,044 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:48,063 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-11-03 03:58:48,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:58:48,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:48,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:48,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:58:48,101 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:48,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:58:48,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:58:48,110 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:48,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:58:48,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:58:48,158 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:48,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,160 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:48,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:48,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:58:48,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:48,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:48,196 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,213 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:48,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,215 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,229 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:48,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,232 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:48,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:48,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:48,266 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 59 treesize of output 58 [2021-11-03 03:58:48,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:58:48,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:58:48,271 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,285 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:48,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,287 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,349 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,369 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:58:48,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:58:48,377 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:58:48,378 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:58:48,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,494 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:58:48,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:48,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:58:48,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:58:48,516 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 20 treesize of output 16 [2021-11-03 03:58:48,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:48,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:48,519 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,525 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:48,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,530 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,538 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:48,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:48,540 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:48,545 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:48,547 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:58:48,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:58:48,552 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:48,555 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:58:48,564 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:58:48,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:58:48,573 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:58:49,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:58:49,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:58:49,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-03 03:58:49,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038843327] [2021-11-03 03:58:49,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:58:49,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:58:49,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:58:49,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:58:49,067 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:49,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:49,183 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-11-03 03:58:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:58:49,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 03:58:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:49,184 INFO L225 Difference]: With dead ends: 21 [2021-11-03 03:58:49,184 INFO L226 Difference]: Without dead ends: 19 [2021-11-03 03:58:49,186 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-11-03 03:58:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-03 03:58:49,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 11. [2021-11-03 03:58:49,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 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) [2021-11-03 03:58:49,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-03 03:58:49,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2021-11-03 03:58:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:49,190 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-03 03:58:49,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-03 03:58:49,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 03:58:49,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:49,191 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-11-03 03:58:49,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:58:49,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:58:49,404 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:58:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:49,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2011767468, now seen corresponding path program 2 times [2021-11-03 03:58:49,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:58:49,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806250517] [2021-11-03 03:58:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:49,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:58:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:49,600 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:58:49,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806250517] [2021-11-03 03:58:49,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806250517] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:58:49,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580196112] [2021-11-03 03:58:49,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:58:49,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:58:49,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:58:49,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:58:49,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 03:58:49,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 03:58:49,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:58:49,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:58:49,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:49,729 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 23 treesize of output 19 [2021-11-03 03:58:49,784 INFO L354 Elim1Store]: treesize reduction 34, result has 20.9 percent of original size [2021-11-03 03:58:49,785 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 50 treesize of output 43 [2021-11-03 03:58:49,849 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 46 treesize of output 28 [2021-11-03 03:58:49,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:49,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:52,022 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 41 treesize of output 39 [2021-11-03 03:58:52,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 102 treesize of output 98 [2021-11-03 03:58:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:52,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580196112] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:58:52,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2138967093] [2021-11-03 03:58:52,137 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-03 03:58:52,137 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:58:52,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:58:52,138 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:58:52,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:58:52,145 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:58:52,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:58:52,147 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:58:52,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:58:52,156 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_30|], 36=[|v_#valid_45|]} [2021-11-03 03:58:52,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:58:52,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:52,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:52,197 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,205 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,226 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,238 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,259 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,326 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:58:52,327 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 43 treesize of output 42 [2021-11-03 03:58:52,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:52,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:52,332 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,342 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:58:52,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:58:52,345 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,345 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:58:52,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,353 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:52,359 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:58:52,372 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,374 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,382 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,384 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:58:52,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:58:52,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:58:52,400 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,409 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,413 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:58:52,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:58:52,416 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,417 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:58:52,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:58:52,520 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,551 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.3 percent of original size 290 [2021-11-03 03:58:52,552 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,563 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-03 03:58:52,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:58:52,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,587 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:58:52,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:58:52,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:58:52,594 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:58:52,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:58:52,629 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,631 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,665 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 59 treesize of output 58 [2021-11-03 03:58:52,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:58:52,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:58:52,669 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,681 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,683 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:52,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:58:52,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:52,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:52,709 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,721 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,723 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,734 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,736 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,799 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:58:52,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:58:52,807 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:58:52,807 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:58:52,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,895 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:58:52,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:52,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:58:52,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:58:52,909 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,912 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,919 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 20 treesize of output 16 [2021-11-03 03:58:52,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:52,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:52,921 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,927 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:52,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:52,928 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:52,933 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:52,935 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:58:52,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:58:52,936 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:52,937 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:58:52,943 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:58:52,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:58:52,949 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:58:53,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:58:53,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:58:53,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-11-03 03:58:53,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419124919] [2021-11-03 03:58:53,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 03:58:53,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:58:53,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 03:58:53,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=251, Unknown=1, NotChecked=0, Total=306 [2021-11-03 03:58:53,395 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 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) [2021-11-03 03:58:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:53,602 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-11-03 03:58:53,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 03:58:53,603 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 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 7 [2021-11-03 03:58:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:53,603 INFO L225 Difference]: With dead ends: 21 [2021-11-03 03:58:53,603 INFO L226 Difference]: Without dead ends: 19 [2021-11-03 03:58:53,604 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=108, Invalid=443, Unknown=1, NotChecked=0, Total=552 [2021-11-03 03:58:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-03 03:58:53,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 10. [2021-11-03 03:58:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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) [2021-11-03 03:58:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-03 03:58:53,607 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2021-11-03 03:58:53,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:53,607 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-03 03:58:53,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 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) [2021-11-03 03:58:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-03 03:58:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 03:58:53,608 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:53,608 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:58:53,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:58:53,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-03 03:58:53,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:58:53,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:53,817 INFO L85 PathProgramCache]: Analyzing trace with hash -477539045, now seen corresponding path program 1 times [2021-11-03 03:58:53,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:58:53,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748329825] [2021-11-03 03:58:53,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:53,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:58:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:53,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:53,882 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:58:53,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748329825] [2021-11-03 03:58:53,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748329825] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:58:53,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703011194] [2021-11-03 03:58:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:53,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:58:53,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:58:53,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:58:53,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 03:58:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:53,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:58:53,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:54,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:54,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:54,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703011194] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:58:54,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1900217029] [2021-11-03 03:58:54,090 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:58:54,090 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:58:54,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:58:54,091 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:58:54,091 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:58:54,102 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:58:54,103 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:58:54,105 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:58:54,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:58:54,121 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_31|], 36=[|v_#valid_46|]} [2021-11-03 03:58:54,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:58:54,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:54,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:54,160 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,168 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,170 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,177 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,181 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,188 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,229 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:58:54,229 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 43 treesize of output 42 [2021-11-03 03:58:54,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:54,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:54,234 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,244 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:58:54,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:58:54,247 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,247 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:58:54,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,256 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:54,262 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:58:54,274 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,284 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,292 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,294 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:58:54,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:58:54,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:58:54,311 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,320 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,323 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:58:54,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:58:54,326 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,326 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:58:54,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,424 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:58:54,439 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,484 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 290 [2021-11-03 03:58:54,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,499 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-11-03 03:58:54,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:58:54,519 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:58:54,527 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:58:54,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:58:54,534 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:58:54,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:58:54,569 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,572 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,588 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,590 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,601 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,604 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,616 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,618 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,644 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 59 treesize of output 58 [2021-11-03 03:58:54,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:58:54,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:58:54,649 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:54,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:58:54,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:54,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:54,671 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,712 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,731 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:58:54,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:58:54,739 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:58:54,740 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:58:54,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,844 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:58:54,850 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:54,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:58:54,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:58:54,865 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 20 treesize of output 16 [2021-11-03 03:58:54,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:54,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:54,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,873 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,876 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,881 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:54,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:54,883 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,891 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:58:54,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:58:54,893 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:54,893 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:58:54,900 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:58:54,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:58:54,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,918 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.9 percent of original size 93 [2021-11-03 03:58:54,922 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-11-03 03:58:54,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-03 03:58:54,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,962 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:58:54,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:58:54,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:54,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:58:54,983 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:58:54,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:58:54,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:54,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:55,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:55,026 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:58:55,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:58:55,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:58:55,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-03 03:58:55,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42535079] [2021-11-03 03:58:55,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 03:58:55,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:58:55,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 03:58:55,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:58:55,924 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-11-03 03:58:55,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:55,968 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2021-11-03 03:58:55,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:58:55,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 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 9 [2021-11-03 03:58:55,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:55,969 INFO L225 Difference]: With dead ends: 26 [2021-11-03 03:58:55,970 INFO L226 Difference]: Without dead ends: 17 [2021-11-03 03:58:55,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-11-03 03:58:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-03 03:58:55,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 11. [2021-11-03 03:58:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-03 03:58:55,973 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2021-11-03 03:58:55,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:55,974 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-03 03:58:55,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-11-03 03:58:55,974 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-03 03:58:55,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:58:55,974 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:55,974 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 03:58:56,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:58:56,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-03 03:58:56,184 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:58:56,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:56,185 INFO L85 PathProgramCache]: Analyzing trace with hash 596100057, now seen corresponding path program 2 times [2021-11-03 03:58:56,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:58:56,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479494196] [2021-11-03 03:58:56,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:56,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:58:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:56,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:58:56,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479494196] [2021-11-03 03:58:56,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479494196] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:58:56,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884326373] [2021-11-03 03:58:56,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:58:56,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:58:56,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:58:56,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:58:56,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 03:58:56,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 03:58:56,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:58:56,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-03 03:58:56,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:56,458 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 37 treesize of output 33 [2021-11-03 03:58:56,679 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 03:58:56,679 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 60 treesize of output 41 [2021-11-03 03:58:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:56,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:56,783 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 26 treesize of output 24 [2021-11-03 03:58:56,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 37 [2021-11-03 03:58:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:56,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884326373] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:58:56,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1581948516] [2021-11-03 03:58:56,847 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:58:56,847 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:58:56,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:58:56,847 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:58:56,847 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:58:56,854 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:58:56,855 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:56,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:58:56,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:56,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:58:56,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:58:56,865 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_32|], 36=[|v_#valid_47|]} [2021-11-03 03:58:56,876 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:56,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:56,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:56,878 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:56,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:58:56,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:56,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:58:56,915 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:56,922 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:56,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:56,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:56,929 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:56,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:56,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:56,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:56,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,001 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:58:57,001 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 43 treesize of output 42 [2021-11-03 03:58:57,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:57,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:58:57,007 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,015 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:58:57,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:58:57,018 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,018 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:58:57,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,024 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:58:57,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 03:58:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:58:57,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:57,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:57,054 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,062 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,065 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,072 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,076 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,087 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 03:58:57,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 03:58:57,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,090 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 03:58:57,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,177 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 03:58:57,186 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,205 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-11-03 03:58:57,206 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,215 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.3 percent of original size [2021-11-03 03:58:57,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 03:58:57,230 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,235 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 03:58:57,237 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:58:57,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 03:58:57,242 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 03:58:57,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 03:58:57,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2021-11-03 03:58:57,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:58:57,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:58:57,296 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:58:57,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:58:57,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:57,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:58:57,324 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,340 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,341 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,363 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,365 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,376 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,378 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,388 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,390 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,428 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,441 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 03:58:57,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 03:58:57,447 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:58:57,447 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 03:58:57,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,504 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:58:57,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:58:57,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:58:57,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:58:57,518 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,519 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,526 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 20 treesize of output 16 [2021-11-03 03:58:57,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:57,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:58:57,528 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,534 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:58:57,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:58:57,536 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,541 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:58:57,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:58:57,542 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:58:57,542 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:58:57,547 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:58:57,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:58:57,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,555 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.9 percent of original size 93 [2021-11-03 03:58:57,558 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-11-03 03:58:57,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-03 03:58:57,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,597 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:58:57,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:58:57,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:58:57,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:58:57,613 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:58:57,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:58:57,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:58:57,654 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:58:58,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:58:58,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:58:58,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-11-03 03:58:58,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634758732] [2021-11-03 03:58:58,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 03:58:58,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:58:58,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 03:58:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2021-11-03 03:58:58,539 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 14 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) [2021-11-03 03:58:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:58,729 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2021-11-03 03:58:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 03:58:58,730 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 14 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 10 [2021-11-03 03:58:58,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:58,731 INFO L225 Difference]: With dead ends: 26 [2021-11-03 03:58:58,731 INFO L226 Difference]: Without dead ends: 24 [2021-11-03 03:58:58,731 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2021-11-03 03:58:58,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-03 03:58:58,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2021-11-03 03:58:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 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) [2021-11-03 03:58:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-03 03:58:58,735 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2021-11-03 03:58:58,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:58,736 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-03 03:58:58,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 14 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) [2021-11-03 03:58:58,736 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-03 03:58:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 03:58:58,736 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:58,737 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 03:58:58,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-03 03:58:58,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-11-03 03:58:58,964 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:58:58,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:58,964 INFO L85 PathProgramCache]: Analyzing trace with hash -480826149, now seen corresponding path program 3 times [2021-11-03 03:58:58,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:58:58,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756610397] [2021-11-03 03:58:58,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:58,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:58:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:59,101 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:58:59,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756610397] [2021-11-03 03:58:59,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756610397] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:58:59,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560409358] [2021-11-03 03:58:59,101 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 03:58:59,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:58:59,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:58:59,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:58:59,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 03:58:59,213 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 03:58:59,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:58:59,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 03:58:59,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:59,282 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 36 treesize of output 32 [2021-11-03 03:58:59,356 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 03:58:59,356 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 63 treesize of output 54 [2021-11-03 03:58:59,585 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 03:58:59,585 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 60 treesize of output 41 [2021-11-03 03:58:59,616 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:59,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:05,799 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 41 treesize of output 39 [2021-11-03 03:59:05,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 102 treesize of output 98 [2021-11-03 03:59:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:05,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560409358] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:05,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [178981806] [2021-11-03 03:59:05,918 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:05,918 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:05,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:05,919 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:05,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:05,925 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:05,925 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:05,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:05,926 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:05,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:05,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:05,934 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_33|], 36=[|v_#valid_48|]} [2021-11-03 03:59:05,941 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:05,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:05,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:05,943 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:05,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:05,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:05,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:05,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:05,980 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:05,988 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:05,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:05,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:05,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:05,990 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:05,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:05,997 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,042 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:06,042 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 43 treesize of output 42 [2021-11-03 03:59:06,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:06,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:06,048 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,056 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:06,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:06,059 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,059 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:06,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:06,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 03:59:06,081 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,090 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,092 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:06,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:06,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:06,105 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,115 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 03:59:06,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 03:59:06,126 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,126 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 03:59:06,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,224 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 03:59:06,235 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,253 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-11-03 03:59:06,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,264 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.3 percent of original size [2021-11-03 03:59:06,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 03:59:06,278 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,282 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:06,285 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 03:59:06,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 03:59:06,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 03:59:06,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 03:59:06,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:06,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:06,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:06,336 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,348 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,350 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,361 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,363 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,374 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,380 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,391 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,394 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:06,415 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 68 treesize of output 64 [2021-11-03 03:59:06,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:06,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:06,419 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,483 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 03:59:06,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 03:59:06,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:06,489 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 03:59:06,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,552 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:06,555 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:06,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:06,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:06,569 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 20 treesize of output 16 [2021-11-03 03:59:06,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:06,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:06,571 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,576 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,579 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,584 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:06,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:06,586 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,591 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:06,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:06,593 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:06,593 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:06,600 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:06,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:06,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,609 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.9 percent of original size 93 [2021-11-03 03:59:06,613 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-11-03 03:59:06,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-03 03:59:06,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,657 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:06,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:06,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:06,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:06,673 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:06,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:06,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:06,719 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:07,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:07,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:07,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2021-11-03 03:59:07,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680343978] [2021-11-03 03:59:07,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-03 03:59:07,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:07,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-03 03:59:07,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=430, Unknown=3, NotChecked=0, Total=506 [2021-11-03 03:59:07,600 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 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) [2021-11-03 03:59:07,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:07,978 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-11-03 03:59:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 03:59:07,979 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 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 [2021-11-03 03:59:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:07,980 INFO L225 Difference]: With dead ends: 28 [2021-11-03 03:59:07,980 INFO L226 Difference]: Without dead ends: 26 [2021-11-03 03:59:07,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=155, Invalid=772, Unknown=3, NotChecked=0, Total=930 [2021-11-03 03:59:07,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-03 03:59:07,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 14. [2021-11-03 03:59:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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) [2021-11-03 03:59:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-11-03 03:59:07,986 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2021-11-03 03:59:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:07,986 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-03 03:59:07,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 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) [2021-11-03 03:59:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-03 03:59:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 03:59:07,987 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:07,987 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2021-11-03 03:59:08,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-03 03:59:08,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-11-03 03:59:08,202 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:08,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:08,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1267861620, now seen corresponding path program 4 times [2021-11-03 03:59:08,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:08,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30729207] [2021-11-03 03:59:08,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:08,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:08,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:08,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30729207] [2021-11-03 03:59:08,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30729207] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:08,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531386166] [2021-11-03 03:59:08,272 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 03:59:08,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:08,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:08,274 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:08,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 03:59:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:08,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:59:08,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:08,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:08,555 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:08,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531386166] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:08,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [178430926] [2021-11-03 03:59:08,558 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:08,558 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:08,558 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:08,559 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:08,559 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:08,564 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:08,565 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:08,567 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:08,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:08,573 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_34|], 36=[|v_#valid_49|]} [2021-11-03 03:59:08,580 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:08,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,582 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:08,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:08,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:08,624 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,631 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:08,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,633 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:08,642 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,697 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:08,697 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 43 treesize of output 42 [2021-11-03 03:59:08,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:08,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:08,702 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:08,709 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,712 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:08,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:08,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,714 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:08,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,722 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:08,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 03:59:08,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:08,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:08,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:08,752 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,761 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:08,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,762 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,769 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:08,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,771 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:08,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,782 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 03:59:08,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 03:59:08,785 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,786 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 03:59:08,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:08,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:08,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:08,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 03:59:08,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,890 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-11-03 03:59:08,890 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,899 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.3 percent of original size [2021-11-03 03:59:08,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 03:59:08,914 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 03:59:08,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:08,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 03:59:08,925 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:08,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 03:59:08,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 03:59:08,955 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:08,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,958 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:08,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:08,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:08,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:08,985 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:08,997 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:08,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:08,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:08,999 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,010 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:09,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,012 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:09,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:09,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:09,045 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 68 treesize of output 64 [2021-11-03 03:59:09,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:09,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:09,048 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,058 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:09,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,060 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,097 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,110 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 03:59:09,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 03:59:09,116 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:09,116 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 03:59:09,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,172 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:09,175 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:09,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:09,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:09,185 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:09,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,187 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,192 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:09,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:09,193 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,199 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 20 treesize of output 16 [2021-11-03 03:59:09,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:09,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:09,201 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,204 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,206 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:09,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:09,208 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:09,208 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:09,213 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:09,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:09,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 03:59:09,225 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 03:59:09,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:59:09,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,254 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:09,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:09,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:09,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:09,270 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:09,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:09,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:09,310 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:10,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:10,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:10,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-11-03 03:59:10,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159587551] [2021-11-03 03:59:10,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 03:59:10,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:10,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 03:59:10,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2021-11-03 03:59:10,177 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 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) [2021-11-03 03:59:10,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:10,248 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2021-11-03 03:59:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:59:10,249 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 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 13 [2021-11-03 03:59:10,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:10,249 INFO L225 Difference]: With dead ends: 33 [2021-11-03 03:59:10,249 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 03:59:10,250 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2021-11-03 03:59:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 03:59:10,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-11-03 03:59:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-11-03 03:59:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-03 03:59:10,255 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2021-11-03 03:59:10,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:10,255 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-03 03:59:10,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 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) [2021-11-03 03:59:10,255 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-03 03:59:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 03:59:10,256 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:10,256 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1] [2021-11-03 03:59:10,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-03 03:59:10,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2021-11-03 03:59:10,480 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:10,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash -570763446, now seen corresponding path program 5 times [2021-11-03 03:59:10,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:10,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850148661] [2021-11-03 03:59:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:10,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:10,713 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:10,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850148661] [2021-11-03 03:59:10,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850148661] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:10,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999533216] [2021-11-03 03:59:10,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:59:10,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:10,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:10,715 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:10,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 03:59:10,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-03 03:59:10,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:59:10,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 03:59:10,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:10,974 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 39 treesize of output 35 [2021-11-03 03:59:11,345 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-03 03:59:11,346 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 71 treesize of output 50 [2021-11-03 03:59:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:11,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:11,781 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 38 treesize of output 36 [2021-11-03 03:59:11,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 59 treesize of output 53 [2021-11-03 03:59:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:11,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999533216] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:11,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [410756387] [2021-11-03 03:59:11,989 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:11,989 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:11,989 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:11,989 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:11,989 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:11,997 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:11,998 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:11,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:11,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:12,000 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:12,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:12,007 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_35|], 36=[|v_#valid_50|]} [2021-11-03 03:59:12,015 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,017 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:12,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:12,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:12,075 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,081 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,083 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,100 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,148 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:12,149 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 43 treesize of output 42 [2021-11-03 03:59:12,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:12,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:12,154 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,164 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,166 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:12,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:12,169 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,169 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:12,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,176 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:12,181 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:59:12,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:59:12,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:12,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:12,208 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,216 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,224 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,230 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,234 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,246 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:59:12,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:59:12,254 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,254 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:59:12,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,343 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:59:12,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,370 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 290 [2021-11-03 03:59:12,370 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,379 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-11-03 03:59:12,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:59:12,395 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:59:12,401 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:12,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:59:12,405 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:59:12,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:59:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:12,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:12,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:12,454 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:12,492 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 59 treesize of output 58 [2021-11-03 03:59:12,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:12,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:12,496 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,509 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,512 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,524 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,526 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,537 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,539 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,549 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,551 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,588 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,605 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:59:12,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:59:12,611 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:12,611 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:59:12,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,680 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:12,683 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:12,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:12,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:12,693 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,695 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-03 03:59:12,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:12,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:12,704 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,709 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:12,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:12,711 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,714 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,719 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:12,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:12,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:12,721 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:12,726 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:12,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:12,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 03:59:12,736 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 03:59:12,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:59:12,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,764 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:12,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:12,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:12,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:12,780 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:12,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:12,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:12,823 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:14,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:14,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:14,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2021-11-03 03:59:14,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160037619] [2021-11-03 03:59:14,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-03 03:59:14,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:14,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-03 03:59:14,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2021-11-03 03:59:14,308 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 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) [2021-11-03 03:59:17,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:17,540 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-03 03:59:17,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-03 03:59:17,541 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 03:59:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:17,542 INFO L225 Difference]: With dead ends: 29 [2021-11-03 03:59:17,542 INFO L226 Difference]: Without dead ends: 17 [2021-11-03 03:59:17,543 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=276, Invalid=1704, Unknown=0, NotChecked=0, Total=1980 [2021-11-03 03:59:17,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-03 03:59:17,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-11-03 03:59:17,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 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) [2021-11-03 03:59:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-03 03:59:17,548 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 14 [2021-11-03 03:59:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:17,549 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-03 03:59:17,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 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) [2021-11-03 03:59:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-03 03:59:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 03:59:17,549 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:17,550 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1] [2021-11-03 03:59:17,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:59:17,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-11-03 03:59:17,750 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash -435556532, now seen corresponding path program 6 times [2021-11-03 03:59:17,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:17,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154263509] [2021-11-03 03:59:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:17,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:18,054 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:18,054 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:18,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154263509] [2021-11-03 03:59:18,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154263509] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:18,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430459901] [2021-11-03 03:59:18,055 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 03:59:18,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:18,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:18,060 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:18,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 03:59:18,225 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 03:59:18,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:59:18,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-03 03:59:18,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:18,322 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 41 treesize of output 37 [2021-11-03 03:59:18,411 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 03:59:18,412 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 65 treesize of output 56 [2021-11-03 03:59:18,806 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-03 03:59:18,806 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 52 treesize of output 39 [2021-11-03 03:59:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:18,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:25,073 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 41 treesize of output 39 [2021-11-03 03:59:25,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 102 treesize of output 98 [2021-11-03 03:59:25,197 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:25,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430459901] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:25,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1313262586] [2021-11-03 03:59:25,200 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:25,200 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:25,200 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:25,200 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:25,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:25,215 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:25,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:25,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:25,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:25,224 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_36|], 36=[|v_#valid_51|]} [2021-11-03 03:59:25,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:25,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:25,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:25,268 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,276 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,278 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,286 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,288 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,294 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,340 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:25,340 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 43 treesize of output 42 [2021-11-03 03:59:25,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:25,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:25,345 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,353 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:25,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:25,356 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,356 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:25,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,365 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:25,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 03:59:25,381 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,383 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,391 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,393 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:25,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:25,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:25,408 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,415 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,418 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 03:59:25,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 03:59:25,421 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,421 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 03:59:25,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 03:59:25,520 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,538 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size 301 [2021-11-03 03:59:25,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,546 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-03 03:59:25,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 03:59:25,560 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,564 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:25,566 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 03:59:25,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 03:59:25,570 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 03:59:25,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 03:59:25,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:25,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:25,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:25,617 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,629 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,631 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:25,658 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 68 treesize of output 64 [2021-11-03 03:59:25,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:25,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:25,661 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,672 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,674 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,685 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,686 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,696 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,698 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,732 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,751 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 03:59:25,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 03:59:25,757 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:25,758 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 03:59:25,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,817 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:25,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:25,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:25,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:25,829 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,831 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,836 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:25,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:25,838 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,843 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 20 treesize of output 16 [2021-11-03 03:59:25,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:25,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:25,845 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,848 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,849 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:25,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:25,851 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:25,851 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:25,856 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:25,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:25,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 03:59:25,864 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 03:59:25,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:59:25,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,894 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:25,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:25,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:25,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:25,910 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:25,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:25,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:25,954 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:26,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:26,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:26,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2021-11-03 03:59:26,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908051718] [2021-11-03 03:59:26,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-03 03:59:26,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-03 03:59:26,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=760, Unknown=3, NotChecked=0, Total=870 [2021-11-03 03:59:26,806 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 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) [2021-11-03 03:59:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:27,321 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-11-03 03:59:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 03:59:27,322 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 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 [2021-11-03 03:59:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:27,323 INFO L225 Difference]: With dead ends: 27 [2021-11-03 03:59:27,323 INFO L226 Difference]: Without dead ends: 25 [2021-11-03 03:59:27,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=229, Invalid=1328, Unknown=3, NotChecked=0, Total=1560 [2021-11-03 03:59:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-03 03:59:27,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2021-11-03 03:59:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-11-03 03:59:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-03 03:59:27,329 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2021-11-03 03:59:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:27,330 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-03 03:59:27,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 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) [2021-11-03 03:59:27,330 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-03 03:59:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 03:59:27,331 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:27,331 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1] [2021-11-03 03:59:27,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:59:27,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:27,547 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:27,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:27,547 INFO L85 PathProgramCache]: Analyzing trace with hash -563334343, now seen corresponding path program 7 times [2021-11-03 03:59:27,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:27,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137230130] [2021-11-03 03:59:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:27,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:27,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:27,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137230130] [2021-11-03 03:59:27,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137230130] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:27,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307865590] [2021-11-03 03:59:27,726 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 03:59:27,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:27,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:27,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:27,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 03:59:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:27,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-03 03:59:27,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:28,004 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 39 treesize of output 35 [2021-11-03 03:59:28,424 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 03:59:28,424 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 58 treesize of output 39 [2021-11-03 03:59:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:28,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:28,587 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 26 treesize of output 24 [2021-11-03 03:59:28,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 37 [2021-11-03 03:59:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:28,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307865590] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:28,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [64495800] [2021-11-03 03:59:28,717 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:28,718 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:28,718 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:28,718 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:28,718 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:28,727 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:28,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:28,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:28,737 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:28,738 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:28,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:28,744 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_37|], 36=[|v_#valid_52|]} [2021-11-03 03:59:28,752 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:28,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,753 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:28,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:28,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:28,793 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,800 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:28,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,802 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:28,805 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,840 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:28,840 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 43 treesize of output 42 [2021-11-03 03:59:28,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:28,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:28,844 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:28,856 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,858 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:28,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:28,862 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,862 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:28,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,865 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:28,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:28,869 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:59:28,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:28,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:59:28,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:28,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:28,899 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,911 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:28,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,914 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,922 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:28,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:28,924 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:28,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:28,934 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:59:28,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:59:28,937 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:28,937 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:59:28,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:28,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:28,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:28,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,004 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:59:29,013 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,035 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 290 [2021-11-03 03:59:29,036 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,045 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-11-03 03:59:29,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:59:29,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:29,068 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:59:29,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:59:29,073 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:59:29,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:59:29,102 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:29,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,104 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:29,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:29,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:29,130 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 59 treesize of output 58 [2021-11-03 03:59:29,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:29,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:29,133 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:29,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:29,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:29,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:29,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:29,167 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,179 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:29,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,181 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,203 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:29,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,205 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,216 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:29,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,218 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,265 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:59:29,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:59:29,270 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:29,270 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:59:29,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,322 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:29,324 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:29,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:29,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:29,339 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 20 treesize of output 16 [2021-11-03 03:59:29,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:29,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:29,340 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,345 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:29,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,346 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,350 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:29,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:29,352 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,354 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,355 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:29,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:29,361 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:29,361 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:29,366 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:29,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:29,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,379 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.9 percent of original size 93 [2021-11-03 03:59:29,382 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-11-03 03:59:29,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-03 03:59:29,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,402 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:29,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:29,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:29,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:29,416 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:29,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:29,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:29,444 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:30,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:30,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:30,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2021-11-03 03:59:30,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630727016] [2021-11-03 03:59:30,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-03 03:59:30,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:30,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-03 03:59:30,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2021-11-03 03:59:30,258 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 22 states have internal predecessors, (41), 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) [2021-11-03 03:59:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:30,672 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2021-11-03 03:59:30,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 03:59:30,673 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-03 03:59:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:30,674 INFO L225 Difference]: With dead ends: 40 [2021-11-03 03:59:30,674 INFO L226 Difference]: Without dead ends: 38 [2021-11-03 03:59:30,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=139, Invalid=1051, Unknown=0, NotChecked=0, Total=1190 [2021-11-03 03:59:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-03 03:59:30,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2021-11-03 03:59:30,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2021-11-03 03:59:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-11-03 03:59:30,683 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2021-11-03 03:59:30,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:30,683 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-11-03 03:59:30,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 22 states have internal predecessors, (41), 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) [2021-11-03 03:59:30,684 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-11-03 03:59:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 03:59:30,684 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:30,685 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 1, 1, 1, 1] [2021-11-03 03:59:30,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:59:30,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:30,901 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1723106757, now seen corresponding path program 8 times [2021-11-03 03:59:30,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:30,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559438838] [2021-11-03 03:59:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:30,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:31,170 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:31,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559438838] [2021-11-03 03:59:31,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559438838] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:31,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659072368] [2021-11-03 03:59:31,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:59:31,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:31,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:31,171 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:31,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 03:59:31,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-03 03:59:31,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:59:31,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 03:59:31,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:31,527 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 41 treesize of output 37 [2021-11-03 03:59:31,615 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 03:59:31,615 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 65 treesize of output 56 [2021-11-03 03:59:32,068 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 03:59:32,073 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 58 treesize of output 39 [2021-11-03 03:59:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:32,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:38,318 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 41 treesize of output 39 [2021-11-03 03:59:38,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 215 treesize of output 207 [2021-11-03 03:59:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:38,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659072368] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:38,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [57980236] [2021-11-03 03:59:38,573 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:38,573 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:38,573 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:38,574 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:38,574 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:38,579 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:38,580 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:38,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:38,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:38,589 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_38|], 36=[|v_#valid_53|]} [2021-11-03 03:59:38,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:38,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:38,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:38,635 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,651 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:38,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,653 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,660 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:38,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,662 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:38,668 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,718 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:38,718 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 43 treesize of output 42 [2021-11-03 03:59:38,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:38,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:38,723 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:38,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,732 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:38,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:38,734 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,735 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:38,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,741 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:38,745 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:59:38,757 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:38,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,759 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,767 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:38,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,770 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:38,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:59:38,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:38,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:38,785 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:38,792 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,795 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:59:38,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:59:38,798 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,798 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:59:38,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:38,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:38,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:38,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:59:38,896 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,916 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 290 [2021-11-03 03:59:38,916 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,926 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-11-03 03:59:38,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:59:38,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,946 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:59:38,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:38,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:59:38,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:38,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:59:38,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:59:38,984 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:38,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,986 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:38,997 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:38,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:38,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:38,998 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,011 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:39,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,014 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:39,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:39,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:39,046 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 59 treesize of output 58 [2021-11-03 03:59:39,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:39,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:39,050 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,062 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:39,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,064 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:39,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:39,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:39,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:39,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:39,088 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,120 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,134 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:59:39,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:59:39,140 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:39,140 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:59:39,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,202 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:39,204 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:39,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:39,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:39,212 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:39,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,213 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,221 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 20 treesize of output 16 [2021-11-03 03:59:39,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:39,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:39,222 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,226 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:39,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:39,228 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,230 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,231 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:39,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:39,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:39,232 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:39,235 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:39,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:39,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 03:59:39,244 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 03:59:39,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:59:39,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,267 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:39,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:39,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:39,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:39,284 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:39,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:39,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:39,310 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:40,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:40,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:40,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 25 [2021-11-03 03:59:40,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030859466] [2021-11-03 03:59:40,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-03 03:59:40,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:40,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-03 03:59:40,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=829, Unknown=2, NotChecked=0, Total=930 [2021-11-03 03:59:40,217 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 26 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 25 states have internal predecessors, (44), 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) [2021-11-03 03:59:40,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:40,862 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-11-03 03:59:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-03 03:59:40,863 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 25 states have internal predecessors, (44), 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 [2021-11-03 03:59:40,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:40,863 INFO L225 Difference]: With dead ends: 42 [2021-11-03 03:59:40,864 INFO L226 Difference]: Without dead ends: 40 [2021-11-03 03:59:40,865 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=233, Invalid=1571, Unknown=2, NotChecked=0, Total=1806 [2021-11-03 03:59:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-03 03:59:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 22. [2021-11-03 03:59:40,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 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) [2021-11-03 03:59:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-11-03 03:59:40,872 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 19 [2021-11-03 03:59:40,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:40,872 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-11-03 03:59:40,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 25 states have internal predecessors, (44), 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) [2021-11-03 03:59:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-11-03 03:59:40,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-03 03:59:40,873 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:40,873 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1] [2021-11-03 03:59:40,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-03 03:59:41,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable211 [2021-11-03 03:59:41,074 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:41,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1851077588, now seen corresponding path program 9 times [2021-11-03 03:59:41,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:41,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50705922] [2021-11-03 03:59:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:41,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:41,165 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:41,166 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:41,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50705922] [2021-11-03 03:59:41,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50705922] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:41,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730288120] [2021-11-03 03:59:41,167 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 03:59:41,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:41,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:41,168 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:41,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 03:59:41,463 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 03:59:41,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:59:41,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 03:59:41,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:41,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:41,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730288120] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:41,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [888412345] [2021-11-03 03:59:41,710 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:41,710 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:41,710 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:41,711 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:41,711 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:41,716 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:41,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:41,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:41,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:41,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:41,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:41,733 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_39|], 36=[|v_#valid_54|]} [2021-11-03 03:59:41,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:41,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:41,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:41,773 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,780 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:41,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,782 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,789 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:41,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,791 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:41,796 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,839 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:41,839 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 43 treesize of output 42 [2021-11-03 03:59:41,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:41,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:41,844 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:41,849 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,852 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:41,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:41,857 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,858 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:41,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:41,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:41,870 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:59:41,881 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:41,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,883 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:41,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:59:41,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:41,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:41,907 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,914 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:41,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:41,915 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:41,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,924 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:59:41,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:59:41,927 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:41,927 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:59:41,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:41,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:41,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:41,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:41,999 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:59:42,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,032 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.0 percent of original size 290 [2021-11-03 03:59:42,032 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,041 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.1 percent of original size [2021-11-03 03:59:42,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:59:42,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:42,063 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:59:42,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:59:42,068 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:59:42,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:59:42,099 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:42,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,101 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,111 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:42,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,113 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:42,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:42,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:42,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:42,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:42,137 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:42,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,150 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,159 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:42,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,161 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:42,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:42,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:42,179 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 59 treesize of output 58 [2021-11-03 03:59:42,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:42,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:42,183 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,212 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,224 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:59:42,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:59:42,229 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:42,229 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:59:42,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,288 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:42,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:42,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:42,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:42,310 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 20 treesize of output 16 [2021-11-03 03:59:42,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:42,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:42,312 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,317 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:42,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,319 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,323 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:42,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:42,325 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,327 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,329 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:42,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:42,331 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:42,331 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:42,336 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:42,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:42,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 03:59:42,345 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 03:59:42,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:59:42,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,386 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:42,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:42,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:42,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:42,404 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:42,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:42,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:42,437 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:43,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:43,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:43,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2021-11-03 03:59:43,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609704781] [2021-11-03 03:59:43,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 03:59:43,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:43,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 03:59:43,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-11-03 03:59:43,175 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 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) [2021-11-03 03:59:43,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:43,269 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2021-11-03 03:59:43,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 03:59:43,269 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-03 03:59:43,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:43,270 INFO L225 Difference]: With dead ends: 47 [2021-11-03 03:59:43,270 INFO L226 Difference]: Without dead ends: 29 [2021-11-03 03:59:43,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2021-11-03 03:59:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-03 03:59:43,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2021-11-03 03:59:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 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) [2021-11-03 03:59:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-11-03 03:59:43,277 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2021-11-03 03:59:43,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:43,277 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-03 03:59:43,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 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) [2021-11-03 03:59:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-03 03:59:43,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 03:59:43,278 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:43,278 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2021-11-03 03:59:43,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-03 03:59:43,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable237 [2021-11-03 03:59:43,482 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:43,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:43,483 INFO L85 PathProgramCache]: Analyzing trace with hash 380833258, now seen corresponding path program 10 times [2021-11-03 03:59:43,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:43,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628492761] [2021-11-03 03:59:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:43,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:43,698 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:43,699 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:43,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628492761] [2021-11-03 03:59:43,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628492761] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:43,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352630294] [2021-11-03 03:59:43,699 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 03:59:43,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:43,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:43,700 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:43,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 03:59:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:43,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-03 03:59:43,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:44,071 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 39 treesize of output 35 [2021-11-03 03:59:44,589 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 03:59:44,590 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 58 treesize of output 39 [2021-11-03 03:59:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:44,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:44,759 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 26 treesize of output 24 [2021-11-03 03:59:44,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 37 [2021-11-03 03:59:44,968 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:44,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352630294] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:44,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870974802] [2021-11-03 03:59:44,971 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:44,971 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:44,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:44,971 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:44,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:44,978 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:44,979 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:44,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:44,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:44,981 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:44,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:44,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:44,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:44,989 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_40|], 36=[|v_#valid_55|]} [2021-11-03 03:59:44,998 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:44,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:44,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,001 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:45,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:45,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:45,046 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,054 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,055 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,105 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:45,106 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 43 treesize of output 42 [2021-11-03 03:59:45,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:45,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:45,110 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,118 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:45,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:45,120 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,120 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:45,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,126 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:45,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 03:59:45,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:45,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:45,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:45,163 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,170 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,172 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,178 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,180 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,186 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,188 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 03:59:45,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 03:59:45,191 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,191 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 03:59:45,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,241 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 03:59:45,250 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,262 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size 301 [2021-11-03 03:59:45,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,268 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-03 03:59:45,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 03:59:45,283 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,288 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:45,290 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 03:59:45,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 03:59:45,294 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 03:59:45,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 03:59:45,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:45,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:45,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:45,347 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,358 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,360 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:45,391 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 68 treesize of output 64 [2021-11-03 03:59:45,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:45,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 03:59:45,396 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,409 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,411 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,423 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,425 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,435 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,437 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,466 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,472 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 03:59:45,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 03:59:45,476 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:45,476 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 03:59:45,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,529 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:45,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:45,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:45,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:45,543 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 20 treesize of output 16 [2021-11-03 03:59:45,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:45,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:45,546 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,551 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,553 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,558 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:45,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:45,560 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,563 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,565 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:45,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:45,567 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:45,567 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:45,573 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:45,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:45,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 03:59:45,583 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 03:59:45,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:59:45,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,604 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:45,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:45,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:45,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:45,616 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:45,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:45,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:45,639 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:59:46,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:46,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:59:46,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2021-11-03 03:59:46,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994176604] [2021-11-03 03:59:46,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-03 03:59:46,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:59:46,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-03 03:59:46,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=897, Unknown=0, NotChecked=0, Total=992 [2021-11-03 03:59:46,518 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 27 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 26 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:59:46,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:59:46,945 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2021-11-03 03:59:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-03 03:59:46,946 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 26 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-03 03:59:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:59:46,946 INFO L225 Difference]: With dead ends: 47 [2021-11-03 03:59:46,946 INFO L226 Difference]: Without dead ends: 45 [2021-11-03 03:59:46,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2021-11-03 03:59:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-03 03:59:46,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 27. [2021-11-03 03:59:46,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 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) [2021-11-03 03:59:46,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-11-03 03:59:46,956 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 22 [2021-11-03 03:59:46,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:59:46,956 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-11-03 03:59:46,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 26 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:59:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-11-03 03:59:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-03 03:59:46,957 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:59:46,957 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 4, 4, 1, 1, 1, 1] [2021-11-03 03:59:46,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 03:59:47,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:47,158 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:59:47,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:59:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash 850592748, now seen corresponding path program 11 times [2021-11-03 03:59:47,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:59:47,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811192638] [2021-11-03 03:59:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:59:47,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:59:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:59:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:47,411 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:59:47,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811192638] [2021-11-03 03:59:47,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811192638] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:59:47,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948991234] [2021-11-03 03:59:47,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:59:47,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:47,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:47,415 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:47,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 03:59:47,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-03 03:59:47,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:59:47,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-03 03:59:47,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:59:47,899 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 41 treesize of output 37 [2021-11-03 03:59:47,982 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 03:59:47,983 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 65 treesize of output 56 [2021-11-03 03:59:48,579 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 03:59:48,580 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 58 treesize of output 39 [2021-11-03 03:59:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:48,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:58,889 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 41 treesize of output 39 [2021-11-03 03:59:58,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 102 treesize of output 98 [2021-11-03 03:59:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:59,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948991234] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:59,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [179968070] [2021-11-03 03:59:59,087 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 03:59:59,087 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:59:59,087 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:59:59,088 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:59:59,088 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:59:59,103 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 03:59:59,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 03:59:59,106 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:59:59,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:59:59,113 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_41|], 36=[|v_#valid_56|]} [2021-11-03 03:59:59,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 03:59:59,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:59,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:59:59,155 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,164 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,166 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,172 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,175 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,180 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,222 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 03:59:59,222 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 43 treesize of output 42 [2021-11-03 03:59:59,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:59,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 03:59:59,227 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,238 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 03:59:59,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 03:59:59,241 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,242 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 03:59:59,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,248 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:59,254 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 03:59:59,267 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,269 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,281 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,283 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 03:59:59,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:59,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:59:59,298 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,318 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,322 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 03:59:59,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 03:59:59,325 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,326 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 03:59:59,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 03:59:59,401 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,417 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.3 percent of original size 290 [2021-11-03 03:59:59,418 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,425 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-03 03:59:59,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 03:59:59,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,444 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:59:59,446 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:59:59,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 03:59:59,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 03:59:59,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 03:59:59,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 03:59:59,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:59,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:59:59,504 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,516 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,518 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,529 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,531 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:59:59,559 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 59 treesize of output 58 [2021-11-03 03:59:59,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:59,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 03:59:59,563 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,574 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,575 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,585 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,587 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,637 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 03:59:59,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 03:59:59,643 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 03:59:59,643 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 03:59:59,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,704 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 03:59:59,708 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:59:59,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 03:59:59,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 03:59:59,719 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,721 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,726 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 03:59:59,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 03:59:59,728 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,734 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 20 treesize of output 16 [2021-11-03 03:59:59,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:59,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:59:59,736 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,740 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 03:59:59,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:59:59,742 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:59:59,742 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 03:59:59,749 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 03:59:59,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:59:59,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 03:59:59,759 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 03:59:59,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 03:59:59,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,786 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:59,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:59,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:59:59,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:59:59,804 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 03:59:59,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 03:59:59,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:59:59,838 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:00:00,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:00:00,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:00:00,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2021-11-03 04:00:00,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455623120] [2021-11-03 04:00:00,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-03 04:00:00,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:00:00,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-03 04:00:00,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1073, Unknown=5, NotChecked=0, Total=1190 [2021-11-03 04:00:00,806 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 30 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 29 states have internal predecessors, (52), 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) [2021-11-03 04:00:01,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:01,526 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-11-03 04:00:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-03 04:00:01,526 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 29 states have internal predecessors, (52), 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 [2021-11-03 04:00:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:01,527 INFO L225 Difference]: With dead ends: 49 [2021-11-03 04:00:01,527 INFO L226 Difference]: Without dead ends: 47 [2021-11-03 04:00:01,529 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=272, Invalid=2075, Unknown=5, NotChecked=0, Total=2352 [2021-11-03 04:00:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-03 04:00:01,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 26. [2021-11-03 04:00:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 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) [2021-11-03 04:00:01,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-11-03 04:00:01,537 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2021-11-03 04:00:01,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:01,537 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-11-03 04:00:01,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 29 states have internal predecessors, (52), 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) [2021-11-03 04:00:01,538 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-03 04:00:01,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:00:01,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:01,539 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1] [2021-11-03 04:00:01,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-03 04:00:01,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable288 [2021-11-03 04:00:01,742 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:00:01,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:01,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1894897701, now seen corresponding path program 12 times [2021-11-03 04:00:01,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:00:01,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904347030] [2021-11-03 04:00:01,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:01,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:00:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 27 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:01,874 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:00:01,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904347030] [2021-11-03 04:00:01,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904347030] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:00:01,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647096894] [2021-11-03 04:00:01,874 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 04:00:01,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:01,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:00:01,875 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:00:01,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-03 04:00:02,343 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 04:00:02,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:00:02,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 04:00:02,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:02,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:02,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647096894] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:00:02,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [80580923] [2021-11-03 04:00:02,658 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:00:02,658 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:00:02,658 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:00:02,658 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:00:02,659 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:00:02,662 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:00:02,663 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:02,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 04:00:02,664 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:02,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:00:02,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 04:00:02,672 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_42|], 36=[|v_#valid_57|]} [2021-11-03 04:00:02,679 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:02,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,680 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,697 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:02,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,698 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 04:00:02,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:02,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:02,728 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:02,732 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,767 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 04:00:02,767 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 43 treesize of output 42 [2021-11-03 04:00:02,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:02,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:02,771 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:02,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,780 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 04:00:02,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 04:00:02,782 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,782 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 04:00:02,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,800 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:02,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:02,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 04:00:02,813 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:02,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,815 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:02,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:02,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:02,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:02,860 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,870 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:02,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:02,871 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:02,876 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,878 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 04:00:02,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 04:00:02,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:02,881 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 04:00:02,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:02,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:02,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:02,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:02,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 04:00:02,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:02,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:02,977 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size 301 [2021-11-03 04:00:02,977 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:02,986 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-03 04:00:02,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 04:00:03,003 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:03,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:03,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:03,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:03,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 04:00:03,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 04:00:03,014 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:03,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 04:00:03,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 04:00:03,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:03,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:03,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:03,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:03,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:03,058 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,075 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:03,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,077 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,086 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:03,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,088 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,097 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:03,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,098 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:03,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2021-11-03 04:00:03,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:00:03,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:00:03,140 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,148 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:03,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,149 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,169 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,176 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 04:00:03,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 04:00:03,180 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:00:03,180 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 04:00:03,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,226 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 04:00:03,228 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:03,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 04:00:03,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 04:00:03,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:03,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,239 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,245 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 20 treesize of output 16 [2021-11-03 04:00:03,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:03,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:03,252 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,256 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:03,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:03,258 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,260 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,261 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 04:00:03,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 04:00:03,262 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:03,262 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 04:00:03,266 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 04:00:03,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 04:00:03,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 04:00:03,274 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 04:00:03,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 04:00:03,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,294 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:03,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:03,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:03,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:00:03,318 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:03,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:03,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:03,350 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:00:04,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:00:04,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:00:04,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 21 [2021-11-03 04:00:04,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138597519] [2021-11-03 04:00:04,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-03 04:00:04,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:00:04,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-03 04:00:04,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2021-11-03 04:00:04,141 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 21 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:04,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:04,294 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-11-03 04:00:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 04:00:04,295 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 21 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-03 04:00:04,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:04,295 INFO L225 Difference]: With dead ends: 54 [2021-11-03 04:00:04,295 INFO L226 Difference]: Without dead ends: 33 [2021-11-03 04:00:04,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=204, Invalid=788, Unknown=0, NotChecked=0, Total=992 [2021-11-03 04:00:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-03 04:00:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2021-11-03 04:00:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 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) [2021-11-03 04:00:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-11-03 04:00:04,308 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 25 [2021-11-03 04:00:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:04,308 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-11-03 04:00:04,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 21 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-11-03 04:00:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-03 04:00:04,310 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:04,310 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1] [2021-11-03 04:00:04,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:04,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable314 [2021-11-03 04:00:04,528 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:00:04,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:04,529 INFO L85 PathProgramCache]: Analyzing trace with hash -293381479, now seen corresponding path program 13 times [2021-11-03 04:00:04,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:00:04,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820327491] [2021-11-03 04:00:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:04,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:00:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:04,823 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:00:04,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820327491] [2021-11-03 04:00:04,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820327491] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:00:04,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901004040] [2021-11-03 04:00:04,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 04:00:04,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:04,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:00:04,825 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:00:04,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-03 04:00:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:05,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-03 04:00:05,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:05,335 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 39 treesize of output 35 [2021-11-03 04:00:05,925 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 04:00:05,925 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 58 treesize of output 39 [2021-11-03 04:00:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:05,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:06,101 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 26 treesize of output 24 [2021-11-03 04:00:06,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 37 [2021-11-03 04:00:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:06,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901004040] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:00:06,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [608162691] [2021-11-03 04:00:06,311 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:00:06,312 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:00:06,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:00:06,312 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:00:06,313 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:00:06,324 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:00:06,325 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:00:06,326 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 04:00:06,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 04:00:06,331 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_43|], 36=[|v_#valid_58|]} [2021-11-03 04:00:06,338 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,341 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 04:00:06,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:06,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:06,374 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,380 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,381 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,427 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 04:00:06,427 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 43 treesize of output 42 [2021-11-03 04:00:06,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:06,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:06,430 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,434 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,435 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 04:00:06,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 04:00:06,436 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,437 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 04:00:06,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:06,452 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 04:00:06,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 04:00:06,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 04:00:06,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 04:00:06,480 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,486 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,487 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,492 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,493 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,499 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 04:00:06,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:00:06,500 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,500 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 04:00:06,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,577 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 04:00:06,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,605 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.3 percent of original size 290 [2021-11-03 04:00:06,606 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,616 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-03 04:00:06,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 04:00:06,633 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:06,639 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 04:00:06,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:00:06,644 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 04:00:06,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 04:00:06,676 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,678 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,688 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,690 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,701 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,703 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,713 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,715 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,750 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 59 treesize of output 58 [2021-11-03 04:00:06,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 04:00:06,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 04:00:06,754 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:06,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:06,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:06,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:06,775 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,808 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,820 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 04:00:06,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 04:00:06,825 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:00:06,826 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 04:00:06,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,865 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 04:00:06,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:06,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 04:00:06,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 04:00:06,875 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,876 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,882 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 20 treesize of output 16 [2021-11-03 04:00:06,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:06,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:06,884 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,889 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:06,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:06,891 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,893 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,894 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 04:00:06,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 04:00:06,895 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:06,896 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 04:00:06,901 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 04:00:06,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 04:00:06,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 04:00:06,912 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 04:00:06,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 04:00:06,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,932 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:06,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:06,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:06,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:00:06,943 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:06,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:06,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:06,984 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:00:07,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:00:07,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:00:07,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 30 [2021-11-03 04:00:07,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22748768] [2021-11-03 04:00:07,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-03 04:00:07,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:00:07,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-03 04:00:07,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1153, Unknown=0, NotChecked=0, Total=1260 [2021-11-03 04:00:07,900 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 31 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 30 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) [2021-11-03 04:00:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:08,410 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-11-03 04:00:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 04:00:08,411 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 30 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) Word has length 26 [2021-11-03 04:00:08,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:08,412 INFO L225 Difference]: With dead ends: 54 [2021-11-03 04:00:08,412 INFO L226 Difference]: Without dead ends: 52 [2021-11-03 04:00:08,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=179, Invalid=1801, Unknown=0, NotChecked=0, Total=1980 [2021-11-03 04:00:08,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-03 04:00:08,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 31. [2021-11-03 04:00:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1) internal successors, (33), 30 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) [2021-11-03 04:00:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-11-03 04:00:08,424 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 26 [2021-11-03 04:00:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:08,425 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-11-03 04:00:08,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 30 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) [2021-11-03 04:00:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-11-03 04:00:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:00:08,426 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:08,426 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 5, 5, 1, 1, 1, 1] [2021-11-03 04:00:08,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-03 04:00:08,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable339 [2021-11-03 04:00:08,640 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:00:08,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:08,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2108981147, now seen corresponding path program 14 times [2021-11-03 04:00:08,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:00:08,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030559945] [2021-11-03 04:00:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:08,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:00:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:09,011 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:00:09,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030559945] [2021-11-03 04:00:09,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030559945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:00:09,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821223378] [2021-11-03 04:00:09,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:00:09,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:09,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:00:09,016 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:00:09,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 04:00:09,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-03 04:00:09,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:00:09,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-03 04:00:09,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:09,659 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 41 treesize of output 37 [2021-11-03 04:00:09,737 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 04:00:09,737 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 65 treesize of output 56 [2021-11-03 04:00:10,280 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 04:00:10,281 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 58 treesize of output 39 [2021-11-03 04:00:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:10,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:12,723 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 41 treesize of output 39 [2021-11-03 04:00:12,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 102 treesize of output 98 [2021-11-03 04:00:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:12,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821223378] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:00:12,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1882426373] [2021-11-03 04:00:12,998 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:00:12,998 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:00:12,998 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:00:12,998 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:00:12,998 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:00:13,013 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:00:13,014 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:00:13,015 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 04:00:13,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 04:00:13,021 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_44|], 36=[|v_#valid_59|]} [2021-11-03 04:00:13,027 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,028 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 04:00:13,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:13,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:13,057 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,062 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,063 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,066 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,107 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 04:00:13,107 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 43 treesize of output 42 [2021-11-03 04:00:13,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:13,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:13,111 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,117 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 04:00:13,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 04:00:13,118 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,119 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 04:00:13,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,123 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:13,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 04:00:13,144 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:13,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:13,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:13,163 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,169 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,170 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,176 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 04:00:13,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 04:00:13,178 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,178 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 04:00:13,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 04:00:13,234 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,244 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-11-03 04:00:13,244 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,249 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.3 percent of original size [2021-11-03 04:00:13,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 04:00:13,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,267 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 04:00:13,269 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:13,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 04:00:13,278 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 04:00:13,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 04:00:13,298 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,299 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:13,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:13,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:13,318 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,326 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,328 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,335 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,337 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:13,358 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 68 treesize of output 64 [2021-11-03 04:00:13,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:00:13,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:00:13,360 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,367 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,369 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,388 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,395 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 04:00:13,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 04:00:13,401 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:00:13,401 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 04:00:13,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,450 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 04:00:13,452 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:13,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 04:00:13,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 04:00:13,464 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,466 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-03 04:00:13,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:13,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:13,477 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:13,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:13,491 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,494 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,496 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 04:00:13,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 04:00:13,498 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:13,500 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 04:00:13,506 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 04:00:13,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 04:00:13,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 04:00:13,518 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.3 percent of original size [2021-11-03 04:00:13,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 04:00:13,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,557 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:13,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:13,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:13,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:00:13,573 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:13,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:13,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:13,607 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:00:14,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:00:14,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:00:14,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2021-11-03 04:00:14,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531903774] [2021-11-03 04:00:14,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-03 04:00:14,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:00:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-03 04:00:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1356, Unknown=1, NotChecked=0, Total=1482 [2021-11-03 04:00:14,573 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 34 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 33 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) [2021-11-03 04:00:15,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:15,523 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2021-11-03 04:00:15,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-03 04:00:15,524 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 33 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) Word has length 27 [2021-11-03 04:00:15,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:15,524 INFO L225 Difference]: With dead ends: 56 [2021-11-03 04:00:15,525 INFO L226 Difference]: Without dead ends: 54 [2021-11-03 04:00:15,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=311, Invalid=2658, Unknown=1, NotChecked=0, Total=2970 [2021-11-03 04:00:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-03 04:00:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 30. [2021-11-03 04:00:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2021-11-03 04:00:15,538 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2021-11-03 04:00:15,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:15,538 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2021-11-03 04:00:15,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 33 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) [2021-11-03 04:00:15,539 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-11-03 04:00:15,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 04:00:15,540 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:15,540 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1] [2021-11-03 04:00:15,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-03 04:00:15,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:15,744 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:00:15,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:15,745 INFO L85 PathProgramCache]: Analyzing trace with hash 135915724, now seen corresponding path program 15 times [2021-11-03 04:00:15,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:00:15,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005541736] [2021-11-03 04:00:15,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:15,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:00:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 41 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:15,920 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:00:15,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005541736] [2021-11-03 04:00:15,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005541736] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:00:15,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062514063] [2021-11-03 04:00:15,921 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 04:00:15,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:15,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:00:15,923 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:00:15,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-03 04:00:16,474 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 04:00:16,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:00:16,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:00:16,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:16,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:16,858 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:16,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062514063] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:00:16,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1248194722] [2021-11-03 04:00:16,862 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:00:16,862 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:00:16,863 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:00:16,863 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:00:16,863 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:00:16,868 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:00:16,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:16,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:00:16,870 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:16,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 04:00:16,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 04:00:16,886 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_45|], 36=[|v_#valid_60|]} [2021-11-03 04:00:16,893 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:16,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:16,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:16,894 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:16,900 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:16,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:16,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:16,902 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:16,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 04:00:16,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:16,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:16,923 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:16,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:16,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:16,972 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 04:00:16,972 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 43 treesize of output 42 [2021-11-03 04:00:16,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:16,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:16,977 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:16,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:16,983 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,985 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 04:00:16,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 04:00:16,988 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:16,988 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 04:00:16,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,995 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:16,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:16,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:16,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-03 04:00:17,013 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,015 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:17,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:17,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:17,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:17,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:17,041 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,050 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,052 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,058 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,060 INFO L180 QuantifierPusher]: treesize reduction 9, result has 95.0 percent of original size [2021-11-03 04:00:17,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-03 04:00:17,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,062 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:552, output treesize:172 [2021-11-03 04:00:17,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-03 04:00:17,140 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,163 INFO L185 QuantifierPusher]: treesize reduction 12, result has 96.2 percent of original size 301 [2021-11-03 04:00:17,164 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,173 INFO L180 QuantifierPusher]: treesize reduction 12, result has 96.3 percent of original size [2021-11-03 04:00:17,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 04:00:17,185 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,188 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 04:00:17,189 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:17,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-03 04:00:17,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-11-03 04:00:17,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 430 [2021-11-03 04:00:17,210 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,211 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,219 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,221 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,228 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,230 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,238 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:17,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:17,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:17,258 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 68 treesize of output 64 [2021-11-03 04:00:17,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:00:17,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:00:17,260 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:17,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:17,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:17,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:17,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:17,275 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,303 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.8 percent of original size [2021-11-03 04:00:17,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-11-03 04:00:17,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:00:17,306 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1577, output treesize:400 [2021-11-03 04:00:17,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,338 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 04:00:17,340 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:17,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 04:00:17,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 04:00:17,358 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 20 treesize of output 16 [2021-11-03 04:00:17,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:17,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:17,360 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,364 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,365 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,369 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:17,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:17,370 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,372 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,373 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 04:00:17,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 04:00:17,373 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:17,374 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 04:00:17,377 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 04:00:17,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 04:00:17,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,382 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.9 percent of original size 93 [2021-11-03 04:00:17,384 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-11-03 04:00:17,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-03 04:00:17,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,403 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:17,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:17,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:17,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:00:17,414 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:17,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:17,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:17,435 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:00:18,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:00:18,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:00:18,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 24 [2021-11-03 04:00:18,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327361796] [2021-11-03 04:00:18,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-03 04:00:18,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:00:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-03 04:00:18,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=698, Unknown=0, NotChecked=0, Total=870 [2021-11-03 04:00:18,249 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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) [2021-11-03 04:00:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:18,375 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2021-11-03 04:00:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 04:00:18,376 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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 [2021-11-03 04:00:18,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:18,376 INFO L225 Difference]: With dead ends: 61 [2021-11-03 04:00:18,376 INFO L226 Difference]: Without dead ends: 37 [2021-11-03 04:00:18,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=259, Invalid=1001, Unknown=0, NotChecked=0, Total=1260 [2021-11-03 04:00:18,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-03 04:00:18,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2021-11-03 04:00:18,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 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) [2021-11-03 04:00:18,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-11-03 04:00:18,385 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 29 [2021-11-03 04:00:18,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:18,385 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-11-03 04:00:18,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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) [2021-11-03 04:00:18,385 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-11-03 04:00:18,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 04:00:18,386 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:18,386 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1] [2021-11-03 04:00:18,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-03 04:00:18,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:18,588 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:00:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:18,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1880853642, now seen corresponding path program 16 times [2021-11-03 04:00:18,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:00:18,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565055895] [2021-11-03 04:00:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:18,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:00:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:18,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:00:18,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565055895] [2021-11-03 04:00:18,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565055895] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:00:18,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924339732] [2021-11-03 04:00:18,906 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 04:00:18,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:18,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:00:18,907 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:00:18,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-03 04:00:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:19,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-03 04:00:19,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:19,629 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 29 treesize of output 25 [2021-11-03 04:00:20,024 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 46 treesize of output 28 [2021-11-03 04:00:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:20,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:20,197 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 26 treesize of output 24 [2021-11-03 04:00:20,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 37 [2021-11-03 04:00:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:20,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924339732] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:00:20,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43082789] [2021-11-03 04:00:20,284 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:00:20,284 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:00:20,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:00:20,284 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:00:20,285 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:00:20,289 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:00:20,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 04:00:20,290 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:00:20,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 04:00:20,295 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_46|], 36=[|v_#valid_61|]} [2021-11-03 04:00:20,300 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,302 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 04:00:20,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:20,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:20,336 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,341 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,343 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,379 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 04:00:20,379 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 43 treesize of output 42 [2021-11-03 04:00:20,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:20,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:20,382 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,387 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 04:00:20,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 04:00:20,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,388 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 04:00:20,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,402 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:20,405 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 04:00:20,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 04:00:20,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 04:00:20,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 04:00:20,423 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,429 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,430 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,435 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,437 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,441 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,442 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 04:00:20,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:00:20,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,444 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 04:00:20,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 04:00:20,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,498 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.3 percent of original size 290 [2021-11-03 04:00:20,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,504 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-03 04:00:20,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 04:00:20,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 04:00:20,515 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:20,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:00:20,518 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 04:00:20,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 04:00:20,542 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,543 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,551 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,552 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,566 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,568 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:20,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:20,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:20,588 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:20,610 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 59 treesize of output 58 [2021-11-03 04:00:20,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 04:00:20,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 04:00:20,613 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,622 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,623 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,657 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 04:00:20,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 04:00:20,662 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:00:20,662 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 04:00:20,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,699 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 04:00:20,701 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:20,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 04:00:20,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 04:00:20,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,709 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,715 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 20 treesize of output 16 [2021-11-03 04:00:20,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:20,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:20,716 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,720 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:20,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:20,721 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,723 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,724 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 04:00:20,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 04:00:20,725 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:20,725 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 04:00:20,729 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 04:00:20,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 04:00:20,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,734 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.9 percent of original size 93 [2021-11-03 04:00:20,736 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-11-03 04:00:20,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-03 04:00:20,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,752 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:20,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:20,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:20,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:00:20,763 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:20,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:20,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:20,794 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:00:21,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:00:21,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:00:21,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2021-11-03 04:00:21,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804885100] [2021-11-03 04:00:21,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-03 04:00:21,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:00:21,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-03 04:00:21,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1441, Unknown=0, NotChecked=0, Total=1560 [2021-11-03 04:00:21,693 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 35 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 34 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) [2021-11-03 04:00:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:00:22,236 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2021-11-03 04:00:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-03 04:00:22,236 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 34 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) Word has length 30 [2021-11-03 04:00:22,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:00:22,237 INFO L225 Difference]: With dead ends: 61 [2021-11-03 04:00:22,237 INFO L226 Difference]: Without dead ends: 59 [2021-11-03 04:00:22,238 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=199, Invalid=2251, Unknown=0, NotChecked=0, Total=2450 [2021-11-03 04:00:22,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-03 04:00:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 35. [2021-11-03 04:00:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:00:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-03 04:00:22,252 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 30 [2021-11-03 04:00:22,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:00:22,252 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-03 04:00:22,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 34 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) [2021-11-03 04:00:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-03 04:00:22,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 04:00:22,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:00:22,253 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 6, 6, 1, 1, 1, 1] [2021-11-03 04:00:22,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-03 04:00:22,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable415 [2021-11-03 04:00:22,464 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:00:22,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:00:22,465 INFO L85 PathProgramCache]: Analyzing trace with hash 139354252, now seen corresponding path program 17 times [2021-11-03 04:00:22,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:00:22,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525490615] [2021-11-03 04:00:22,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:00:22,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:00:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:00:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:22,889 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:00:22,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525490615] [2021-11-03 04:00:22,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525490615] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:00:22,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324543193] [2021-11-03 04:00:22,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:00:22,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:00:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:00:22,891 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:00:22,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-03 04:00:23,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-03 04:00:23,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:00:23,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-03 04:00:23,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:00:23,879 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 27 treesize of output 23 [2021-11-03 04:00:23,985 INFO L354 Elim1Store]: treesize reduction 43, result has 21.8 percent of original size [2021-11-03 04:00:23,985 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 70 treesize of output 60 [2021-11-03 04:00:25,370 INFO L354 Elim1Store]: treesize reduction 24, result has 52.9 percent of original size [2021-11-03 04:00:25,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 141 treesize of output 91 [2021-11-03 04:00:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 51 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:25,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:00:27,704 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 56 treesize of output 54 [2021-11-03 04:00:27,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 137 treesize of output 131 [2021-11-03 04:00:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 45 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:00:28,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324543193] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:00:28,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1745508347] [2021-11-03 04:00:28,328 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:00:28,328 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:00:28,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:00:28,329 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:00:28,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:00:28,332 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:00:28,333 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:00:28,334 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 04:00:28,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 04:00:28,343 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_47|], 36=[|v_#valid_62|]} [2021-11-03 04:00:28,350 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,352 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,358 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,360 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-11-03 04:00:28,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:28,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 04:00:28,382 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,435 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-03 04:00:28,435 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 43 treesize of output 42 [2021-11-03 04:00:28,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:28,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:00:28,440 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,447 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.7 percent of original size [2021-11-03 04:00:28,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-03 04:00:28,448 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,448 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:555, output treesize:144 [2021-11-03 04:00:28,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,452 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:28,455 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.4 percent of original size 189 [2021-11-03 04:00:28,463 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-03 04:00:28,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 04:00:28,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 04:00:28,480 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,485 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,487 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,493 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.5 percent of original size [2021-11-03 04:00:28,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:00:28,494 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,494 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:528, output treesize:160 [2021-11-03 04:00:28,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,533 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-11-03 04:00:28,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,557 INFO L185 QuantifierPusher]: treesize reduction 8, result has 97.3 percent of original size 290 [2021-11-03 04:00:28,557 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,562 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.4 percent of original size [2021-11-03 04:00:28,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-03 04:00:28,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,574 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 04:00:28,576 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:00:28,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:00:28,579 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-11-03 04:00:28,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 419 [2021-11-03 04:00:28,600 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,603 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2021-11-03 04:00:28,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:28,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:00:28,622 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,630 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,631 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,639 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,640 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,647 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,648 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:00:28,663 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 59 treesize of output 58 [2021-11-03 04:00:28,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 04:00:28,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-03 04:00:28,666 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,685 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,692 INFO L180 QuantifierPusher]: treesize reduction 121, result has 76.3 percent of original size [2021-11-03 04:00:28,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-03 04:00:28,695 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:00:28,695 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1544, output treesize:389 [2021-11-03 04:00:28,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,732 INFO L180 QuantifierPusher]: treesize reduction 42, result has 75.4 percent of original size [2021-11-03 04:00:28,734 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:00:28,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-03 04:00:28,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-03 04:00:28,743 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,750 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,757 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 20 treesize of output 16 [2021-11-03 04:00:28,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:28,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:00:28,759 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,763 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:00:28,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:00:28,764 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,767 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,768 INFO L180 QuantifierPusher]: treesize reduction 7, result has 92.7 percent of original size [2021-11-03 04:00:28,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 04:00:28,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:00:28,769 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:297, output treesize:89 [2021-11-03 04:00:28,775 INFO L180 QuantifierPusher]: treesize reduction 43, result has 60.9 percent of original size [2021-11-03 04:00:28,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 04:00:28,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,781 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.9 percent of original size 93 [2021-11-03 04:00:28,783 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-11-03 04:00:28,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-03 04:00:28,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,801 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:28,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:28,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:00:28,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 04:00:28,812 INFO L180 QuantifierPusher]: treesize reduction 42, result has 65.6 percent of original size [2021-11-03 04:00:28,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:00:28,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:00:28,835 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:00:30,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:00:30,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:00:30,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2021-11-03 04:00:30,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159184408] [2021-11-03 04:00:30,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-03 04:00:30,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:00:30,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-03 04:00:30,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=2825, Unknown=1, NotChecked=0, Total=3192 [2021-11-03 04:00:30,053 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 52 states, 52 states have (on average 1.7307692307692308) internal successors, (90), 51 states have internal predecessors, (90), 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) [2021-11-03 04:01:32,002 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 c_ULTIMATE.start_main_~j~0) (not (= (* 4 c_ULTIMATE.start_main_~i~0) 28)) (exists ((v_ULTIMATE.start_main_~i~0_452 Int)) (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|)) (.cse4 (* v_ULTIMATE.start_main_~i~0_452 4))) (let ((.cse1 (select .cse3 (+ .cse4 |c_ULTIMATE.start_main_~#a~0.offset|))) (.cse2 (+ v_ULTIMATE.start_main_~i~0_452 1)) (.cse0 (select .cse3 (+ .cse4 |c_ULTIMATE.start_main_~#a~0.offset| (- 4))))) (and (< .cse0 (+ v_ULTIMATE.start_main_~i~0_452 19998)) (< .cse0 (+ 9998 .cse1)) (< .cse2 .cse1) (<= v_ULTIMATE.start_main_~i~0_452 8) (< .cse1 (+ 10000 .cse0)) (< .cse1 (+ 19999 v_ULTIMATE.start_main_~i~0_452)) (<= c_ULTIMATE.start_main_~n~0 .cse2) (< v_ULTIMATE.start_main_~i~0_452 .cse0))))) (<= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) (forall ((v_ULTIMATE.start_main_~i~0_460 Int)) (or (< v_ULTIMATE.start_main_~i~0_460 7) (<= c_ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~i~0_460) (<= (+ v_ULTIMATE.start_main_~i~0_460 2) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_main_~i~0_460 4)))))) (forall ((v_ULTIMATE.start_main_~k~0_105 Int) (v_ULTIMATE.start_main_~i~0_460 Int)) (or (< v_ULTIMATE.start_main_~i~0_460 7) (<= (+ c_ULTIMATE.start_main_~i~0 1) v_ULTIMATE.start_main_~i~0_460) (<= (+ v_ULTIMATE.start_main_~i~0_460 2) (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* c_ULTIMATE.start_main_~i~0 4)) (+ c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_105)) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_main_~i~0_460 4)))) (<= v_ULTIMATE.start_main_~k~0_105 0) (<= 10000 v_ULTIMATE.start_main_~k~0_105))) (< c_ULTIMATE.start_main_~j~0 10000) (<= 7 c_ULTIMATE.start_main_~i~0) (<= 9 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| 28)))) is different from false [2021-11-03 04:01:32,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:01:32,365 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2021-11-03 04:01:32,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-03 04:01:32,365 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.7307692307692308) internal successors, (90), 51 states have internal predecessors, (90), 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 31 [2021-11-03 04:01:32,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:01:32,366 INFO L225 Difference]: With dead ends: 105 [2021-11-03 04:01:32,366 INFO L226 Difference]: Without dead ends: 34 [2021-11-03 04:01:32,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3944 ImplicationChecksByTransitivity, 52.0s TimeCoverageRelationStatistics Valid=1920, Invalid=14583, Unknown=13, NotChecked=254, Total=16770 [2021-11-03 04:01:32,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-03 04:01:32,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-03 04:01:32,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 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) [2021-11-03 04:01:32,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2021-11-03 04:01:32,382 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 31 [2021-11-03 04:01:32,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:01:32,383 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2021-11-03 04:01:32,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.7307692307692308) internal successors, (90), 51 states have internal predecessors, (90), 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) [2021-11-03 04:01:32,383 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-11-03 04:01:32,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 04:01:32,383 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:01:32,384 INFO L513 BasicCegarLoop]: trace histogram [10, 7, 6, 6, 1, 1, 1, 1] [2021-11-03 04:01:32,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-03 04:01:32,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable441 [2021-11-03 04:01:32,594 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:01:32,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:01:32,594 INFO L85 PathProgramCache]: Analyzing trace with hash -851187636, now seen corresponding path program 18 times [2021-11-03 04:01:32,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:01:32,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940523938] [2021-11-03 04:01:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:01:32,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:01:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:01:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:01:33,160 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:01:33,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940523938] [2021-11-03 04:01:33,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940523938] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:01:33,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024703816] [2021-11-03 04:01:33,160 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 04:01:33,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:01:33,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:01:33,162 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:01:33,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc0c92a-c1b2-482c-807e-8b4352de8eeb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-03 04:01:33,851 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 04:01:33,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:01:33,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-03 04:01:33,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:01:33,967 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 41 treesize of output 37 [2021-11-03 04:01:34,048 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 04:01:34,048 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 67 treesize of output 58 [2021-11-03 04:01:34,141 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 04:01:34,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2021-11-03 04:01:34,235 INFO L354 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2021-11-03 04:01:34,235 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 65 treesize of output 56 [2021-11-03 04:01:35,002 INFO L354 Elim1Store]: treesize reduction 11, result has 21.4 percent of original size [2021-11-03 04:01:35,002 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 58 treesize of output 39 [2021-11-03 04:01:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 109 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:01:35,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:01:45,342 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~k~0_114 Int) (v_ULTIMATE.start_main_~k~0_115 Int) (v_ULTIMATE.start_main_~i~0_506 Int)) (or (< v_ULTIMATE.start_main_~i~0_506 (+ c_ULTIMATE.start_main_~i~0 1)) (<= 9 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* c_ULTIMATE.start_main_~i~0 4)) (+ c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_115)) (+ (* v_ULTIMATE.start_main_~i~0_506 4) |c_ULTIMATE.start_main_~#a~0.offset|) (+ c_ULTIMATE.start_main_~j~0 v_ULTIMATE.start_main_~i~0_506 v_ULTIMATE.start_main_~k~0_114)) (+ |c_ULTIMATE.start_main_~#a~0.offset| 28))))) is different from false [2021-11-03 04:01:47,393 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~k~0_114 Int) (v_ULTIMATE.start_main_~k~0_115 Int) (v_ULTIMATE.start_main_~k~0_116 Int) (v_ULTIMATE.start_main_~i~0_506 Int) (v_ULTIMATE.start_main_~i~0_507 Int)) (or (< v_ULTIMATE.start_main_~i~0_506 (+ v_ULTIMATE.start_main_~i~0_507 1)) (< v_ULTIMATE.start_main_~i~0_507 (+ c_ULTIMATE.start_main_~i~0 1)) (<= 9 (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* c_ULTIMATE.start_main_~i~0 4)) (+ c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_116)) (+ (* v_ULTIMATE.start_main_~i~0_507 4) |c_ULTIMATE.start_main_~#a~0.offset|) (+ c_ULTIMATE.start_main_~j~0 v_ULTIMATE.start_main_~i~0_507 v_ULTIMATE.start_main_~k~0_115)) (+ (* v_ULTIMATE.start_main_~i~0_506 4) |c_ULTIMATE.start_main_~#a~0.offset|) (+ c_ULTIMATE.start_main_~j~0 v_ULTIMATE.start_main_~i~0_506 v_ULTIMATE.start_main_~k~0_114)) (+ |c_ULTIMATE.start_main_~#a~0.offset| 28))))) is different from false [2021-11-03 04:01:47,416 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 71 treesize of output 69 [2021-11-03 04:01:47,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14367 treesize of output 14239