./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7 --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 e2d96ac7da90505ebe789a14ca36a5b916234d7d0d8ab11cf581076a8deb0195 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:49:58,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:49:58,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:49:58,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:49:58,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:49:58,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:49:58,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:49:58,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:49:58,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:49:58,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:49:58,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:49:58,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:49:58,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:49:58,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:49:58,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:49:58,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:49:58,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:49:58,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:49:58,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:49:58,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:49:58,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:49:58,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:49:58,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:49:58,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:49:58,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:49:58,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:49:58,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:49:58,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:49:58,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:49:58,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:49:58,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:49:58,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:49:58,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:49:58,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:49:58,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:49:58,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:49:58,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:49:58,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:49:58,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:49:58,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:49:58,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:49:58,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 17:49:58,794 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:49:58,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:49:58,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:49:58,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:49:58,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:49:58,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:49:58,802 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:49:58,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:49:58,803 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:49:58,803 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:49:58,804 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:49:58,804 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:49:58,804 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:49:58,805 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:49:58,805 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:49:58,805 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:49:58,805 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:49:58,805 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:49:58,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:49:58,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:49:58,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:49:58,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:49:58,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:49:58,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:49:58,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:49:58,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:49:58,810 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:49:58,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:49:58,810 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:49:58,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:49:58,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:49:58,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:49:58,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:58,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:49:58,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:49:58,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:49:58,812 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:49:58,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:49:58,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:49:58,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:49:58,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:49:58,813 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_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2d96ac7da90505ebe789a14ca36a5b916234d7d0d8ab11cf581076a8deb0195 [2021-11-25 17:49:59,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:49:59,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:49:59,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:49:59,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:49:59,084 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:49:59,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i [2021-11-25 17:49:59,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/data/a5bdbff47/78a2d1d5dc8748ab84332a3318e7379d/FLAGba4f392f6 [2021-11-25 17:49:59,792 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:49:59,792 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i [2021-11-25 17:49:59,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/data/a5bdbff47/78a2d1d5dc8748ab84332a3318e7379d/FLAGba4f392f6 [2021-11-25 17:50:00,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/data/a5bdbff47/78a2d1d5dc8748ab84332a3318e7379d [2021-11-25 17:50:00,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:50:00,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:50:00,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:50:00,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:50:00,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:50:00,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:50:00" (1/1) ... [2021-11-25 17:50:00,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d81d753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:00, skipping insertion in model container [2021-11-25 17:50:00,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:50:00" (1/1) ... [2021-11-25 17:50:00,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:50:00,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:50:00,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i[33022,33035] [2021-11-25 17:50:00,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:50:00,987 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:50:01,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-2.i[33022,33035] [2021-11-25 17:50:01,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:50:01,303 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:50:01,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01 WrapperNode [2021-11-25 17:50:01,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:50:01,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:50:01,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:50:01,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:50:01,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,511 INFO L137 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2330 [2021-11-25 17:50:01,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:50:01,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:50:01,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:50:01,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:50:01,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:50:01,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:50:01,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:50:01,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:50:01,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (1/1) ... [2021-11-25 17:50:01,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:50:01,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:01,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:50:01,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:50:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-25 17:50:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-25 17:50:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:50:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 17:50:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 17:50:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:50:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:50:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:50:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:50:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:50:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:50:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:50:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 17:50:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:50:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:50:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:50:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:50:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:50:02,143 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:50:02,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:50:03,832 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:50:04,647 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:50:04,647 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-11-25 17:50:04,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:50:04 BoogieIcfgContainer [2021-11-25 17:50:04,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:50:04,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:50:04,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:50:04,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:50:04,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:50:00" (1/3) ... [2021-11-25 17:50:04,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fa85dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:50:04, skipping insertion in model container [2021-11-25 17:50:04,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:50:01" (2/3) ... [2021-11-25 17:50:04,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fa85dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:50:04, skipping insertion in model container [2021-11-25 17:50:04,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:50:04" (3/3) ... [2021-11-25 17:50:04,661 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-2.i [2021-11-25 17:50:04,671 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:50:04,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:50:04,735 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:50:04,750 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 [2021-11-25 17:50:04,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:50:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 17:50:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 17:50:04,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:04,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:04,798 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1013260908, now seen corresponding path program 1 times [2021-11-25 17:50:04,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:04,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024064662] [2021-11-25 17:50:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:04,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:50:05,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:05,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024064662] [2021-11-25 17:50:05,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024064662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:05,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:05,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:50:05,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465990885] [2021-11-25 17:50:05,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:05,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 17:50:05,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 17:50:05,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 17:50:05,159 INFO L87 Difference]: Start difference. First operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:06,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:06,467 INFO L93 Difference]: Finished difference Result 529 states and 961 transitions. [2021-11-25 17:50:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 17:50:06,470 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 17:50:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:06,488 INFO L225 Difference]: With dead ends: 529 [2021-11-25 17:50:06,488 INFO L226 Difference]: Without dead ends: 249 [2021-11-25 17:50:06,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 17:50:06,507 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:06,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 17:50:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-25 17:50:06,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-25 17:50:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 17:50:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2021-11-25 17:50:06,599 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2021-11-25 17:50:06,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:06,600 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2021-11-25 17:50:06,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:06,601 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2021-11-25 17:50:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 17:50:06,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:06,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:06,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:50:06,609 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1808167895, now seen corresponding path program 1 times [2021-11-25 17:50:06,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:06,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887998393] [2021-11-25 17:50:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:06,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:50:06,718 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:06,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887998393] [2021-11-25 17:50:06,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887998393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:06,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:06,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:06,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490916686] [2021-11-25 17:50:06,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:06,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:06,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:06,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:06,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:06,722 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:09,331 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2021-11-25 17:50:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 17:50:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:09,334 INFO L225 Difference]: With dead ends: 425 [2021-11-25 17:50:09,335 INFO L226 Difference]: Without dead ends: 276 [2021-11-25 17:50:09,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:09,338 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:09,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 770 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 17:50:09,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-25 17:50:09,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2021-11-25 17:50:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 17:50:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-25 17:50:09,358 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2021-11-25 17:50:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:09,358 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-25 17:50:09,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-25 17:50:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 17:50:09,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:09,361 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:09,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:50:09,362 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:09,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:09,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1787107309, now seen corresponding path program 1 times [2021-11-25 17:50:09,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:09,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299410419] [2021-11-25 17:50:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:09,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:09,540 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:50:09,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024096081] [2021-11-25 17:50:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:09,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:09,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:50:09,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:50:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:10,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:50:10,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:10,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:50:10,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:10,548 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:10,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299410419] [2021-11-25 17:50:10,549 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:50:10,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024096081] [2021-11-25 17:50:10,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024096081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:10,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:10,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:50:10,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644931324] [2021-11-25 17:50:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:10,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:10,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:10,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:10,558 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:12,931 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2021-11-25 17:50:12,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:12,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-25 17:50:12,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:12,935 INFO L225 Difference]: With dead ends: 614 [2021-11-25 17:50:12,935 INFO L226 Difference]: Without dead ends: 366 [2021-11-25 17:50:12,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:12,937 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:12,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 532 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:50:12,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-25 17:50:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-25 17:50:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-25 17:50:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2021-11-25 17:50:12,961 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2021-11-25 17:50:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:12,962 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2021-11-25 17:50:12,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:50:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2021-11-25 17:50:12,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 17:50:12,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:12,966 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:13,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 17:50:13,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-25 17:50:13,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:13,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:13,181 INFO L85 PathProgramCache]: Analyzing trace with hash -338981431, now seen corresponding path program 1 times [2021-11-25 17:50:13,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:13,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599973555] [2021-11-25 17:50:13,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:13,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:13,262 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:50:13,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084843817] [2021-11-25 17:50:13,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:13,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:13,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:13,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:50:13,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:50:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:13,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 17:50:13,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:13,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 17:50:14,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:50:14,022 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 15 treesize of output 7 [2021-11-25 17:50:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:50:14,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:14,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:14,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599973555] [2021-11-25 17:50:14,135 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:50:14,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084843817] [2021-11-25 17:50:14,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084843817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:14,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:14,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:14,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558626793] [2021-11-25 17:50:14,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:14,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:14,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:14,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:14,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:14,138 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:50:16,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:50:17,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:17,621 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2021-11-25 17:50:17,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:17,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-25 17:50:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:17,625 INFO L225 Difference]: With dead ends: 674 [2021-11-25 17:50:17,625 INFO L226 Difference]: Without dead ends: 362 [2021-11-25 17:50:17,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:17,627 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:17,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 772 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-25 17:50:17,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-25 17:50:17,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-25 17:50:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-25 17:50:17,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-25 17:50:17,646 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2021-11-25 17:50:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:17,647 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-25 17:50:17,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:50:17,647 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-25 17:50:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-25 17:50:17,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:17,651 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:17,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:17,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:17,866 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash -334329145, now seen corresponding path program 1 times [2021-11-25 17:50:17,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:17,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603317286] [2021-11-25 17:50:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:17,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:17,999 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:50:17,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365023746] [2021-11-25 17:50:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:18,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:18,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:18,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:50:18,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:50:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:18,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:50:18,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:19,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:50:19,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:19,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:19,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603317286] [2021-11-25 17:50:19,157 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:50:19,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365023746] [2021-11-25 17:50:19,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365023746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:19,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:19,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:50:19,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213752883] [2021-11-25 17:50:19,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:19,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:19,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:19,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:19,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:19,160 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:50:21,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:21,188 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2021-11-25 17:50:21,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:21,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2021-11-25 17:50:21,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:21,192 INFO L225 Difference]: With dead ends: 820 [2021-11-25 17:50:21,192 INFO L226 Difference]: Without dead ends: 484 [2021-11-25 17:50:21,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:21,194 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:21,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 530 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 17:50:21,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-25 17:50:21,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2021-11-25 17:50:21,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-25 17:50:21,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2021-11-25 17:50:21,217 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2021-11-25 17:50:21,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:21,218 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2021-11-25 17:50:21,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 17:50:21,218 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2021-11-25 17:50:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-25 17:50:21,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:21,222 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:21,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:21,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:21,436 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:21,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:21,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1903584894, now seen corresponding path program 1 times [2021-11-25 17:50:21,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:21,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386211585] [2021-11-25 17:50:21,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:21,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:21,510 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:50:21,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [244516901] [2021-11-25 17:50:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:21,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:21,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:21,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:50:21,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 17:50:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:22,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:50:22,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 17:50:22,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:22,508 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:22,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386211585] [2021-11-25 17:50:22,509 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:50:22,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244516901] [2021-11-25 17:50:22,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244516901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:22,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:22,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:22,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250462594] [2021-11-25 17:50:22,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:22,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:22,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:22,511 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 17:50:23,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:23,976 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2021-11-25 17:50:23,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:23,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2021-11-25 17:50:23,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:23,980 INFO L225 Difference]: With dead ends: 719 [2021-11-25 17:50:23,980 INFO L226 Difference]: Without dead ends: 351 [2021-11-25 17:50:23,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:23,982 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 438 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:23,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 334 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 17:50:23,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-25 17:50:23,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-25 17:50:23,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 17:50:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2021-11-25 17:50:24,001 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2021-11-25 17:50:24,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:24,001 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2021-11-25 17:50:24,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 17:50:24,002 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2021-11-25 17:50:24,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 17:50:24,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:24,004 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:24,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:24,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:24,228 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1222209427, now seen corresponding path program 1 times [2021-11-25 17:50:24,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:24,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084899024] [2021-11-25 17:50:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:24,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:24,304 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:50:24,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214862431] [2021-11-25 17:50:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:24,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:24,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:24,306 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:50:24,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 17:50:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:29,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:50:29,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:50:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 17:50:29,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:50:29,715 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:29,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084899024] [2021-11-25 17:50:29,715 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:50:29,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214862431] [2021-11-25 17:50:29,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214862431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:29,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:29,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:29,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151090000] [2021-11-25 17:50:29,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:29,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:29,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:29,717 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-25 17:50:32,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:32,201 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2021-11-25 17:50:32,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:32,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 103 [2021-11-25 17:50:32,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:32,204 INFO L225 Difference]: With dead ends: 684 [2021-11-25 17:50:32,204 INFO L226 Difference]: Without dead ends: 353 [2021-11-25 17:50:32,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:32,206 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:32,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 17:50:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-25 17:50:32,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-25 17:50:32,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2021-11-25 17:50:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2021-11-25 17:50:32,228 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2021-11-25 17:50:32,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:32,228 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2021-11-25 17:50:32,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-25 17:50:32,229 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2021-11-25 17:50:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-25 17:50:32,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:32,231 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:32,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 17:50:32,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 17:50:32,444 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:50:32,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:32,445 INFO L85 PathProgramCache]: Analyzing trace with hash 221127857, now seen corresponding path program 1 times [2021-11-25 17:50:32,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:32,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531698737] [2021-11-25 17:50:32,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:32,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:32,548 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:50:32,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624482037] [2021-11-25 17:50:32,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:32,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:32,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:32,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:50:32,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f193583c-9b41-49dc-b756-13aac8a61434/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:01:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:08,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 18:01:08,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:01:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 18:01:08,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:01:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:01:09,066 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531698737] [2021-11-25 18:01:09,066 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:01:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624482037] [2021-11-25 18:01:09,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624482037] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:01:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [798348990] [2021-11-25 18:01:09,098 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-25 18:01:09,099 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:01:09,103 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:01:09,110 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:01:09,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:01:09,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,394 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:01:09,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:01:09,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:01:09,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:01:09,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:01:09,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:01:09,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:01:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,521 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:01:09,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:01:09,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-25 18:01:09,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:01:09,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 18:01:09,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:09,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:01:10,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 67 [2021-11-25 18:01:10,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-25 18:01:10,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:01:10,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:01:10,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:01:10,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:01:10,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:01:10,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:01:10,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 18:01:10,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 18:01:10,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 55 [2021-11-25 18:01:10,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 18:01:10,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:01:10,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:01:10,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:01:10,545 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:01:10,545 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 57 treesize of output 60 [2021-11-25 18:01:10,576 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:01:10,576 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 51 treesize of output 54 [2021-11-25 18:01:10,605 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:01:10,605 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 47 treesize of output 50 [2021-11-25 18:01:10,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:01:10,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:01:10,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:01:10,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 18:01:10,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 30 [2021-11-25 18:01:10,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:01:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:01:10,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 30 [2021-11-25 18:01:10,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:10,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 18:01:16,443 WARN L227 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:01:16,446 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:01:16,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 18:01:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:23,414 WARN L227 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:01:23,414 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:01:23,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 18:01:23,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:23,890 INFO L244 Elim1Store]: Index analysis took 284 ms [2021-11-25 18:01:33,342 WARN L227 SmtUtils]: Spent 9.27s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:01:33,343 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 18:01:33,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 18:01:33,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:33,978 INFO L244 Elim1Store]: Index analysis took 195 ms [2021-11-25 18:01:33,992 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 18:01:33,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 18:01:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,369 INFO L244 Elim1Store]: Index analysis took 181 ms [2021-11-25 18:01:34,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 57 [2021-11-25 18:01:34,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:34,977 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:01:34,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 18:01:35,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:35,360 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:01:35,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 18:01:35,680 INFO L244 Elim1Store]: Index analysis took 189 ms [2021-11-25 18:01:38,481 INFO L354 Elim1Store]: treesize reduction 12, result has 99.4 percent of original size [2021-11-25 18:01:38,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3564 treesize of output 4954 [2021-11-25 18:01:48,850 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:48,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:48,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:48,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:48,889 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:48,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:48,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:48,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:48,967 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-25 18:01:48,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3555 treesize of output 3107 [2021-11-25 18:01:49,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:49,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:49,292 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:49,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:49,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:49,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:49,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:49,417 INFO L244 Elim1Store]: Index analysis took 137 ms [2021-11-25 18:01:49,581 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:01:49,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3555 treesize of output 3175 [2021-11-25 18:01:50,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:50,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:50,218 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:50,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:50,236 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:01:50,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:50,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:50,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:50,325 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-11-25 18:01:50,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3555 treesize of output 3107 [2021-11-25 18:01:53,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:53,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-25 18:01:53,744 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:01:53,768 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:01:53,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:54,029 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 18:01:54,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-25 18:01:54,068 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:01:54,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:54,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-25 18:01:54,191 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:01:54,214 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:01:58,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:01:58,754 INFO L354 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2021-11-25 18:01:58,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 217259 treesize of output 205600 [2021-11-25 18:02:14,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:02:14,100 INFO L190 IndexEqualityManager]: detected not equals via solver