./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW --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 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:28:47,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:28:47,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:28:47,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:28:47,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:28:47,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:28:47,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:28:47,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:28:47,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:28:47,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:28:47,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:28:47,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:28:47,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:28:47,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:28:47,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:28:47,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:28:47,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:28:47,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:28:47,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:28:47,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:28:47,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:28:47,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:28:47,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:28:47,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:28:47,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:28:47,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:28:47,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:28:47,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:28:47,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:28:47,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:28:47,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:28:47,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:28:47,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:28:47,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:28:47,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:28:47,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:28:47,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:28:47,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:28:47,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:28:47,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:28:47,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:28:47,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:28:47,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:28:47,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:28:47,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:28:47,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:28:47,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:28:47,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:28:47,768 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:28:47,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:28:47,769 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:28:47,769 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:28:47,770 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:28:47,770 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:28:47,771 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:28:47,771 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:28:47,771 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:28:47,771 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:28:47,771 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:28:47,771 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:28:47,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:28:47,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:28:47,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:28:47,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:28:47,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:28:47,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:28:47,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:28:47,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:28:47,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:28:47,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:28:47,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:28:47,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:28:47,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:28:47,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:28:47,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:28:47,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:28:47,776 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:28:47,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:28:47,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:28:47,777 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:28:47,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:28:47,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:28:47,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:28:47,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 [2022-11-23 14:28:48,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:28:48,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:28:48,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:28:48,132 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:28:48,132 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:28:48,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2022-11-23 14:28:51,272 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:28:51,622 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:28:51,623 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2022-11-23 14:28:51,645 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/data/a7134457f/22aba7393ea14200b6fe5205a6fa84b6/FLAG7fcea2670 [2022-11-23 14:28:51,670 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/data/a7134457f/22aba7393ea14200b6fe5205a6fa84b6 [2022-11-23 14:28:51,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:28:51,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:28:51,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:28:51,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:28:51,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:28:51,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:51" (1/1) ... [2022-11-23 14:28:51,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6468ee11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:51, skipping insertion in model container [2022-11-23 14:28:51,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:51" (1/1) ... [2022-11-23 14:28:51,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:28:51,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:28:52,162 WARN L237 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_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i[33021,33034] [2022-11-23 14:28:52,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:28:52,360 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:28:52,448 WARN L237 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_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i[33021,33034] [2022-11-23 14:28:52,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:28:52,612 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:28:52,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52 WrapperNode [2022-11-23 14:28:52,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:28:52,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:28:52,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:28:52,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:28:52,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,753 INFO L138 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1437 [2022-11-23 14:28:52,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:28:52,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:28:52,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:28:52,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:28:52,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,851 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:28:52,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:28:52,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:28:52,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:28:52,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (1/1) ... [2022-11-23 14:28:52,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:28:52,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:28:52,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:28:52,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:28:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:28:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:28:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:28:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:28:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:28:52,959 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:28:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:28:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:28:53,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:28:53,258 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:28:55,264 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:28:55,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:28:55,807 INFO L300 CfgBuilder]: Removed 77 assume(true) statements. [2022-11-23 14:28:55,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:28:55 BoogieIcfgContainer [2022-11-23 14:28:55,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:28:55,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:28:55,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:28:55,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:28:55,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:28:51" (1/3) ... [2022-11-23 14:28:55,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30914369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:28:55, skipping insertion in model container [2022-11-23 14:28:55,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:52" (2/3) ... [2022-11-23 14:28:55,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30914369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:28:55, skipping insertion in model container [2022-11-23 14:28:55,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:28:55" (3/3) ... [2022-11-23 14:28:55,819 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-3.i [2022-11-23 14:28:55,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:28:55,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:28:55,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:28:55,910 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45b57e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:28:55,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:28:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 14:28:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:28:55,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:28:55,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:28:55,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:28:55,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:28:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash -810098709, now seen corresponding path program 1 times [2022-11-23 14:28:55,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:28:55,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403212752] [2022-11-23 14:28:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:28:55,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:28:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:28:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:28:56,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:28:56,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403212752] [2022-11-23 14:28:56,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403212752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:28:56,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:28:56,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:28:56,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29211030] [2022-11-23 14:28:56,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:28:56,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:28:56,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:28:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:28:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:28:56,188 INFO L87 Difference]: Start difference. First operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 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) [2022-11-23 14:28:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:28:58,860 INFO L93 Difference]: Finished difference Result 399 states and 722 transitions. [2022-11-23 14:28:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:28:58,868 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 [2022-11-23 14:28:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:28:58,880 INFO L225 Difference]: With dead ends: 399 [2022-11-23 14:28:58,881 INFO L226 Difference]: Without dead ends: 220 [2022-11-23 14:28:58,885 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:28:58,888 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 97 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:28:58,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 365 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-23 14:28:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-23 14:28:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-23 14:28:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 14:28:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-23 14:28:58,985 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-23 14:28:58,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:28:58,986 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-23 14:28:58,987 INFO L496 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) [2022-11-23 14:28:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-23 14:28:58,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 14:28:58,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:28:58,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:28:58,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:28:58,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:28:58,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:28:58,995 INFO L85 PathProgramCache]: Analyzing trace with hash 761830316, now seen corresponding path program 1 times [2022-11-23 14:28:58,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:28:58,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094495487] [2022-11-23 14:28:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:28:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:28:59,271 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:28:59,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426860218] [2022-11-23 14:28:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:28:59,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:28:59,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:28:59,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:28:59,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:29:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:00,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:29:00,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:29:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:29:00,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:29:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:29:01,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:01,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094495487] [2022-11-23 14:29:01,071 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:29:01,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426860218] [2022-11-23 14:29:01,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426860218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:29:01,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [89071135] [2022-11-23 14:29:01,094 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-23 14:29:01,094 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:29:01,098 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:29:01,104 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:29:01,105 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:29:01,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:29:01,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,298 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:29:01,299 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:01,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,334 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:01,374 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:29:01,374 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:01,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,400 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:01,451 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:29:01,452 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:01,847 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:01,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:29:01,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:01,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:29:02,028 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,090 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:29:02,091 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,115 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:29:02,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,147 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:29:02,148 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,170 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,222 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:29:02,223 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:29:02,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:02,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 14:29:02,767 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,786 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:02,811 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:29:11,030 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:18,307 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:29:18,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [89071135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:18,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:29:18,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 14:29:18,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029968976] [2022-11-23 14:29:18,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:18,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:29:18,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:18,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:29:18,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 14:29:18,317 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-11-23 14:29:21,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:29:23,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:29:25,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:29:30,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:29:31,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:31,447 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-23 14:29:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:29:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 52 [2022-11-23 14:29:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:31,453 INFO L225 Difference]: With dead ends: 265 [2022-11-23 14:29:31,453 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 14:29:31,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 14:29:31,461 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 9 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:31,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 461 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2022-11-23 14:29:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 14:29:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-23 14:29:31,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 14:29:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-23 14:29:31,492 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-23 14:29:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:31,493 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-23 14:29:31,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-11-23 14:29:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-23 14:29:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 14:29:31,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:31,496 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:29:31,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:29:31,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-23 14:29:31,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:29:31,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:31,717 INFO L85 PathProgramCache]: Analyzing trace with hash 583681991, now seen corresponding path program 1 times [2022-11-23 14:29:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:31,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187843824] [2022-11-23 14:29:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:31,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:31,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:29:31,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154295427] [2022-11-23 14:29:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:31,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:29:31,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:29:31,922 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:29:31,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:29:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:33,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:29:33,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:29:33,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:29:33,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:29:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:29:33,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:33,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187843824] [2022-11-23 14:29:33,433 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:29:33,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154295427] [2022-11-23 14:29:33,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154295427] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:29:33,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [132801238] [2022-11-23 14:29:33,443 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 14:29:33,443 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:29:33,444 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:29:33,444 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:29:33,445 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:29:33,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:33,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:29:33,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:33,556 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:29:33,557 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:33,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:33,579 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:33,625 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:29:33,626 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:33,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:33,646 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:33,696 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:29:33,696 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:29:34,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 14:29:34,163 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,185 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,220 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:29:34,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:29:34,364 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,407 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:29:34,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:29:34,585 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:29:34,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-23 14:29:34,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-23 14:29:34,928 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:29:34,929 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,947 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,961 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,969 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:34,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:34,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:29:34,987 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:29:35,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:29:35,459 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:35,476 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:35,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:29:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:29:35,658 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:35,674 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:35,733 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:29:35,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:29:35,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:29:35,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:29:35,902 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:29:35,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-23 14:29:35,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-23 14:29:36,272 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-23 14:29:36,372 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:29:52,538 WARN L233 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:02,392 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:14,649 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:27,270 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:30:27,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [132801238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:27,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:30:27,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 14:30:27,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341754971] [2022-11-23 14:30:27,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:27,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:30:27,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:30:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:30:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:30:27,975 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-11-23 14:30:30,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:32,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:35,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:37,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:39,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:41,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:43,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:45,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:47,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:48,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:30:56,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:30:58,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:31:00,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:31:00,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:00,459 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-23 14:31:00,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:31:00,460 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 65 [2022-11-23 14:31:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:00,461 INFO L225 Difference]: With dead ends: 267 [2022-11-23 14:31:00,462 INFO L226 Difference]: Without dead ends: 142 [2022-11-23 14:31:00,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 51.7s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:31:00,464 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 8 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:00,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 749 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 427 Invalid, 10 Unknown, 0 Unchecked, 32.4s Time] [2022-11-23 14:31:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-23 14:31:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-23 14:31:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-23 14:31:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-23 14:31:00,497 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-23 14:31:00,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:00,498 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-23 14:31:00,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-11-23 14:31:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-23 14:31:00,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 14:31:00,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:00,501 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:00,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:31:00,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:31:00,711 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash 501515405, now seen corresponding path program 1 times [2022-11-23 14:31:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:00,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639359511] [2022-11-23 14:31:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:00,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:00,868 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:31:00,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955030207] [2022-11-23 14:31:00,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:00,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:31:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:31:00,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:31:00,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69cd9101-b2e6-4f3c-b0d3-9058dfe5a81e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:31:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:02,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:31:02,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:31:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:31:02,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:31:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:31:02,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:02,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639359511] [2022-11-23 14:31:02,365 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:31:02,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955030207] [2022-11-23 14:31:02,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955030207] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:31:02,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693969992] [2022-11-23 14:31:02,370 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 14:31:02,370 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:31:02,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:31:02,371 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:31:02,371 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:31:02,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,467 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:02,509 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:31:02,509 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:02,560 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:31:02,560 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:02,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,578 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:02,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:31:02,591 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:02,878 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:02,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:31:02,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:02,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 14:31:03,013 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:03,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:31:03,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:31:03,189 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:03,202 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:03,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:31:03,322 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:31:03,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-23 14:31:03,411 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:31:03,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-23 14:31:03,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:31:03,532 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:03,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:31:03,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:31:03,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:31:03,772 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 14:31:03,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 56 [2022-11-23 14:31:03,810 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:31:03,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2022-11-23 14:31:03,841 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:31:03,841 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 46 [2022-11-23 14:31:03,898 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:03,904 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:03,910 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:03,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:03,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 14:31:04,032 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:04,051 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:04,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:31:04,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 14:31:04,255 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:04,274 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:31:05,236 INFO L217 Elim1Store]: Index analysis took 558 ms [2022-11-23 14:31:08,173 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-23 14:31:08,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-23 14:31:10,559 INFO L217 Elim1Store]: Index analysis took 2204 ms [2022-11-23 14:31:17,779 WARN L233 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 78 DAG size of output: 18 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:31:17,779 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-23 14:31:17,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-23 14:31:27,131 WARN L233 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:31:27,131 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 14:31:27,131 INFO L350 Elim1Store]: Elim1 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 1986 treesize of output 1476 [2022-11-23 14:31:57,399 WARN L233 SmtUtils]: Spent 30.11s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:31:57,400 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:31:57,400 INFO L350 Elim1Store]: Elim1 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 2005 treesize of output 1824 [2022-11-23 14:31:58,354 INFO L217 Elim1Store]: Index analysis took 713 ms [2022-11-23 14:32:29,315 WARN L233 SmtUtils]: Spent 30.30s on a formula simplification. DAG size of input: 252 DAG size of output: 150 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:32:29,316 INFO L321 Elim1Store]: treesize reduction 2438, result has 32.1 percent of original size [2022-11-23 14:32:29,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 2093 [2022-11-23 14:32:30,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:32:30,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:32:30,625 INFO L217 Elim1Store]: Index analysis took 490 ms [2022-11-23 14:32:30,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2022-11-23 14:32:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:32:30,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-23 14:32:30,871 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 14:32:31,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:32:31,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 71 [2022-11-23 14:32:31,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:32:31,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:32:31,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2022-11-23 14:32:32,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:32:32,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-23 14:35:48,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:48,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13