./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:14:38,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:14:38,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:14:38,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:14:38,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:14:38,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:14:38,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:14:38,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:14:38,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:14:38,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:14:38,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:14:38,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:14:38,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:14:38,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:14:38,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:14:38,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:14:38,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:14:38,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:14:38,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:14:38,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:14:38,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:14:38,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:14:38,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:14:38,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:14:38,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:14:38,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:14:38,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:14:38,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:14:38,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:14:38,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:14:38,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:14:38,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:14:38,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:14:38,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:14:38,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:14:38,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:14:38,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:14:38,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:14:38,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:14:38,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:14:38,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:14:38,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:14:38,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:14:38,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:14:38,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:14:38,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:14:38,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:14:38,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:14:38,718 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:14:38,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:14:38,719 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:14:38,719 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:14:38,720 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:14:38,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:14:38,720 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:14:38,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:14:38,721 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:14:38,722 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:14:38,722 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:14:38,722 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:14:38,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:14:38,723 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:14:38,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:14:38,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:14:38,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:14:38,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:14:38,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:14:38,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:14:38,726 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:14:38,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:14:38,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:14:38,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:14:38,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:14:38,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:14:38,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:14:38,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:14:38,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:14:38,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:14:38,730 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:14:38,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:14:38,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:14:38,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:14:38,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:14:38,731 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_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2021-11-23 03:14:38,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:14:39,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:14:39,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:14:39,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:14:39,017 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:14:39,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-23 03:14:39,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/data/6ea66f6f4/3f68dacf0b3e43c1be76db12568cec48/FLAG2ff374492 [2021-11-23 03:14:39,698 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:14:39,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-23 03:14:39,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/data/6ea66f6f4/3f68dacf0b3e43c1be76db12568cec48/FLAG2ff374492 [2021-11-23 03:14:39,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/data/6ea66f6f4/3f68dacf0b3e43c1be76db12568cec48 [2021-11-23 03:14:39,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:14:39,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:14:39,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:14:39,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:14:39,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:14:39,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:14:39" (1/1) ... [2021-11-23 03:14:39,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcec53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:39, skipping insertion in model container [2021-11-23 03:14:39,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:14:39" (1/1) ... [2021-11-23 03:14:39,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:14:40,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:14:40,416 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_40c6eaf1-e453-4433-8db1-ddfd414dc3af/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-23 03:14:40,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:14:40,547 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:14:40,581 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_40c6eaf1-e453-4433-8db1-ddfd414dc3af/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-23 03:14:40,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:14:40,697 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:14:40,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40 WrapperNode [2021-11-23 03:14:40,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:14:40,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:14:40,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:14:40,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:14:40,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,788 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 621 [2021-11-23 03:14:40,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:14:40,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:14:40,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:14:40,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:14:40,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:14:40,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:14:40,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:14:40,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:14:40,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (1/1) ... [2021-11-23 03:14:40,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:14:40,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:14:40,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:14:40,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:14:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:14:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:14:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:14:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:14:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:14:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:14:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:14:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:14:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:14:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:14:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:14:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:14:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:14:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:14:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:14:41,218 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:14:41,220 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:14:42,068 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:14:42,377 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:14:42,377 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-23 03:14:42,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:14:42 BoogieIcfgContainer [2021-11-23 03:14:42,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:14:42,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:14:42,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:14:42,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:14:42,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:14:39" (1/3) ... [2021-11-23 03:14:42,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72fcd0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:14:42, skipping insertion in model container [2021-11-23 03:14:42,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:40" (2/3) ... [2021-11-23 03:14:42,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72fcd0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:14:42, skipping insertion in model container [2021-11-23 03:14:42,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:14:42" (3/3) ... [2021-11-23 03:14:42,390 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-1.i [2021-11-23 03:14:42,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:14:42,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:14:42,462 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:14:42,479 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:14:42,479 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:14:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 03:14:42,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:14:42,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:42,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:42,514 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:14:42,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1633489720, now seen corresponding path program 1 times [2021-11-23 03:14:42,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:42,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622596932] [2021-11-23 03:14:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:42,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:42,692 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:42,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622596932] [2021-11-23 03:14:42,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622596932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:42,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:42,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:14:42,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157730946] [2021-11-23 03:14:42,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:42,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:14:42,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:42,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:14:42,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:42,731 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:14:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:43,909 INFO L93 Difference]: Finished difference Result 209 states and 376 transitions. [2021-11-23 03:14:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:14:43,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 03:14:43,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:43,934 INFO L225 Difference]: With dead ends: 209 [2021-11-23 03:14:43,934 INFO L226 Difference]: Without dead ends: 128 [2021-11-23 03:14:43,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:43,941 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:43,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-23 03:14:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-23 03:14:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-23 03:14:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 03:14:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-23 03:14:43,990 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-23 03:14:43,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:43,990 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-23 03:14:43,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:14:43,991 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-23 03:14:43,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 03:14:43,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:43,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:43,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:14:43,994 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:14:43,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:43,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011669, now seen corresponding path program 1 times [2021-11-23 03:14:43,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:43,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131714309] [2021-11-23 03:14:43,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:43,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:44,014 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:14:44,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877894533] [2021-11-23 03:14:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:44,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:14:44,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:14:44,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:14:44,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:14:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:44,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:14:44,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:14:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:44,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:14:44,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:44,486 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:44,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131714309] [2021-11-23 03:14:44,487 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:14:44,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877894533] [2021-11-23 03:14:44,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877894533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:14:44,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1471122500] [2021-11-23 03:14:44,508 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-23 03:14:44,508 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:14:44,512 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:14:44,518 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:14:44,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:14:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:44,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:14:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:44,685 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 [2021-11-23 03:14:44,716 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 03:14:44,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-23 03:14:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:44,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:44,755 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:14:44,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-23 03:14:44,811 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:14:44,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 03:14:45,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:45,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:45,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:14:45,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:14:45,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:14:45,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:14:45,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:45,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:45,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:45,728 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:14:46,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1471122500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:46,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 03:14:46,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-23 03:14:46,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080789814] [2021-11-23 03:14:46,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:46,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:14:46,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:46,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:14:46,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:14:46,665 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:14:48,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:48,930 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-23 03:14:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:14:48,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-23 03:14:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:48,937 INFO L225 Difference]: With dead ends: 173 [2021-11-23 03:14:48,937 INFO L226 Difference]: Without dead ends: 94 [2021-11-23 03:14:48,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:14:48,940 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:48,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 03:14:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-23 03:14:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-23 03:14:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 03:14:48,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-23 03:14:48,955 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-23 03:14:48,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:48,955 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-23 03:14:48,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:14:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-23 03:14:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 03:14:48,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:48,958 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 03:14:48,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 03:14:49,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:14:49,179 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:14:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1705819700, now seen corresponding path program 1 times [2021-11-23 03:14:49,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:49,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994435756] [2021-11-23 03:14:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:49,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:49,194 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:14:49,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088556520] [2021-11-23 03:14:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:49,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:14:49,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:14:49,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:14:49,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:14:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:49,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:14:49,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:14:49,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:14:49,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:14:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:14:49,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:49,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994435756] [2021-11-23 03:14:49,651 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:14:49,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088556520] [2021-11-23 03:14:49,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088556520] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:14:49,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [749888780] [2021-11-23 03:14:49,666 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 03:14:49,666 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:14:49,667 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:14:49,667 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:14:49,667 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:14:49,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,732 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 [2021-11-23 03:14:49,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:49,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,753 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:14:49,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-23 03:14:49,789 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:14:49,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 03:14:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,806 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 [2021-11-23 03:14:49,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 03:14:50,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:50,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:14:50,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:14:50,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:50,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:14:50,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-23 03:14:50,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:14:50,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 03:14:50,252 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 03:14:50,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 125 [2021-11-23 03:14:50,314 INFO L354 Elim1Store]: treesize reduction 160, result has 11.6 percent of original size [2021-11-23 03:14:50,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 116 treesize of output 119 [2021-11-23 03:14:50,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:14:50,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:14:50,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:14:50,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:14:50,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:50,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:50,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:50,993 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 89 treesize of output 88 [2021-11-23 03:14:51,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:14:51,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:14:51,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:14:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:14:51,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:14:51,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:51,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 03:14:51,192 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 03:14:51,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 03:14:51,233 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 03:14:51,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 03:14:51,282 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 101 for LOIs [2021-11-23 03:14:51,343 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:14:53,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [749888780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:53,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 03:14:53,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-23 03:14:53,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271743628] [2021-11-23 03:14:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:53,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 03:14:53,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 03:14:53,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-23 03:14:53,100 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:14:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:55,543 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-23 03:14:55,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 03:14:55,557 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-23 03:14:55,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:55,559 INFO L225 Difference]: With dead ends: 175 [2021-11-23 03:14:55,559 INFO L226 Difference]: Without dead ends: 96 [2021-11-23 03:14:55,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-23 03:14:55,561 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:55,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 326 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 105 Invalid, 0 Unknown, 53 Unchecked, 2.4s Time] [2021-11-23 03:14:55,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-23 03:14:55,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-23 03:14:55,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 03:14:55,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-23 03:14:55,577 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-23 03:14:55,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:55,578 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-23 03:14:55,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:14:55,578 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-23 03:14:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 03:14:55,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:55,580 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 03:14:55,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 03:14:55,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:14:55,783 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:14:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:55,783 INFO L85 PathProgramCache]: Analyzing trace with hash -336880136, now seen corresponding path program 1 times [2021-11-23 03:14:55,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:55,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910476562] [2021-11-23 03:14:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:55,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:55,813 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:14:55,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848769815] [2021-11-23 03:14:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:55,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:14:55,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:14:55,823 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:14:55,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c6eaf1-e453-4433-8db1-ddfd414dc3af/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:14:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:55,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:14:55,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:14:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:14:56,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:14:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:14:56,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:56,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910476562] [2021-11-23 03:14:56,207 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:14:56,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848769815] [2021-11-23 03:14:56,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848769815] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:14:56,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1866714822] [2021-11-23 03:14:56,211 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 03:14:56,211 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:14:56,212 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:14:56,212 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:14:56,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:14:56,281 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:14:56,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 03:14:56,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 03:14:56,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,309 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 [2021-11-23 03:14:56,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,317 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:56,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-23 03:14:56,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,332 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 [2021-11-23 03:14:56,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:14:56,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:14:56,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:56,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:14:56,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,669 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 89 treesize of output 88 [2021-11-23 03:14:56,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:14:56,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:14:56,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:14:56,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:14:56,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 03:14:56,866 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 03:14:56,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 03:14:56,913 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 03:14:56,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 03:14:56,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:56,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:14:57,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:14:57,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:14:57,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 03:14:57,055 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 03:14:57,056 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 98 treesize of output 97 [2021-11-23 03:14:57,081 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:14:57,081 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 94 treesize of output 93 [2021-11-23 03:14:57,100 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:14:57,101 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 90 treesize of output 89 [2021-11-23 03:14:57,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 03:14:57,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:14:57,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:14:57,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 03:14:57,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:14:57,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 03:14:57,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 03:14:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:14:57,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:57,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 03:15:04,851 WARN L227 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:15:04,852 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 03:15:04,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2853 treesize of output 2330 [2021-11-23 03:15:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:14,884 WARN L227 SmtUtils]: Spent 9.99s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:15:14,884 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 03:15:14,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2954 treesize of output 2672 [2021-11-23 03:15:24,525 WARN L227 SmtUtils]: Spent 9.47s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:15:24,526 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-23 03:15:24,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2922 treesize of output 2692 [2021-11-23 03:15:25,994 INFO L354 Elim1Store]: treesize reduction 126, result has 25.0 percent of original size [2021-11-23 03:15:25,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 25960 treesize of output 25988 [2021-11-23 03:15:26,690 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-11-23 03:15:26,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 25970 treesize of output 25981 [2021-11-23 03:15:27,312 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:15:27,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:27,481 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 03:15:27,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-23 03:15:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:27,859 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:15:27,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61